1230253156 has 24 divisors (see below), whose sum is σ = 2360977920. Its totient is φ = 556274400.

The previous prime is 1230253117. The next prime is 1230253169. The reversal of 1230253156 is 6513520321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64791 + ... + 81598.

It is an arithmetic number, because the mean of its divisors is an integer number (98374080).

Almost surely, 2^1230253156 is an apocalyptic number.

It is an amenable number.

1230253156 is a deficient number, since it is larger than the sum of its proper divisors (1130724764).

1230253156 is a wasteful number, since it uses less digits than its factorization.

1230253156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146595 (or 146593 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1230253156 is about 35074.9648039738. The cubic root of 1230253156 is about 1071.5147719074.

Adding to 1230253156 its reverse (6513520321), we get a palindrome (7743773477).

The spelling of 1230253156 in words is "one billion, two hundred thirty million, two hundred fifty-three thousand, one hundred fifty-six".