1147542270 has 96 divisors (see below), whose sum is σ = 3211314336. Its totient is φ = 261676800.

The previous prime is 1147542239. The next prime is 1147542281. The reversal of 1147542270 is 722457411.

It is a super-2 number, since 2×1147542270² = 2633706522873505800, 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, 971080 + ... + 972260.

It is an arithmetic number, because the mean of its divisors is an integer number (33451191).

Almost surely, 2^1147542270 is an apocalyptic number.

1147542270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147542270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605657168).

1147542270 is an abundant number, since it is smaller than the sum of its proper divisors (2063772066).

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

1147542270 is a wasteful number, since it uses less digits than its factorization.

1147542270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 1147542270 is about 33875.3932818499. The cubic root of 1147542270 is about 1046.9426619905.

Adding to 1147542270 its reverse (722457411), we get a palindrome (1869999681).

The spelling of 1147542270 in words is "one billion, one hundred forty-seven million, five hundred forty-two thousand, two hundred seventy".