1230515146 has 12 divisors (see below), whose sum is σ = 2147123538. Its totient is φ = 527363592.

The previous prime is 1230515123. The next prime is 1230515171. The reversal of 1230515146 is 6415150321.

It can be written as a sum of positive squares in only one way, i.e., 1189491121 + 41024025 = 34489^2 + 6405^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6278041 + ... + 6278236.

Almost surely, 2^1230515146 is an apocalyptic number.

1230515146 is a deficient number, since it is larger than the sum of its proper divisors (916608392).

1230515146 is a wasteful number, since it uses less digits than its factorization.

1230515146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12556293 (or 12556286 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1230515146 is about 35078.6993202428. The cubic root of 1230515146 is about 1071.5908284027.

Adding to 1230515146 its reverse (6415150321), we get a palindrome (7645665467).

The spelling of 1230515146 in words is "one billion, two hundred thirty million, five hundred fifteen thousand, one hundred forty-six".