1227252078 has 96 divisors (see below), whose sum is σ = 3058159104. Its totient is φ = 352731456.

The previous prime is 1227252043. The next prime is 1227252113. The reversal of 1227252078 is 8702527221.

1227252078 is a `hidden beast` number, since 122 + 7 + 2 + 520 + 7 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1227252043) and next prime (1227252113).

It is a super-2 number, since 2×1227252078² = 3012295325910636168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228775 + ... + 234077.

It is an arithmetic number, because the mean of its divisors is an integer number (31855824).

Almost surely, 2^1227252078 is an apocalyptic number.

1227252078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227252078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529079552).

1227252078 is an abundant number, since it is smaller than the sum of its proper divisors (1830907026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1227252078 is a wasteful number, since it uses less digits than its factorization.

1227252078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390 (or 5387 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 1227252078 is about 35032.1577696836. The cubic root of 1227252078 is about 1070.6427785475.

Adding to 1227252078 its reverse (8702527221), we get a palindrome (9929779299).

The spelling of 1227252078 in words is "one billion, two hundred twenty-seven million, two hundred fifty-two thousand, seventy-eight".