1214153730 has 96 divisors (see below), whose sum is σ = 3275251200. Its totient is φ = 311692416.

The previous prime is 1214153729. The next prime is 1214153771. The reversal of 1214153730 is 373514121.

1214153730 is a `hidden beast` number, since 121 + 4 + 1 + 537 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1214153694 and 1214153703.

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, 1688311 + ... + 1689029.

It is an arithmetic number, because the mean of its divisors is an integer number (34117200).

Almost surely, 2^1214153730 is an apocalyptic number.

1214153730 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 1214153730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637625600).

1214153730 is an abundant number, since it is smaller than the sum of its proper divisors (2061097470).

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

1214153730 is a wasteful number, since it uses less digits than its factorization.

1214153730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1214153730 is about 34844.7087805308. The cubic root of 1214153730 is about 1066.8201895998.

Adding to 1214153730 its reverse (373514121), we get a palindrome (1587667851).

The spelling of 1214153730 in words is "one billion, two hundred fourteen million, one hundred fifty-three thousand, seven hundred thirty".