1258015012 has 24 divisors (see below), whose sum is σ = 2286567360. Its totient is φ = 604884000.

The previous prime is 1258015007. The next prime is 1258015037. The reversal of 1258015012 is 2105108521.

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, 7513 + ... + 50719.

It is an arithmetic number, because the mean of its divisors is an integer number (95273640).

Almost surely, 2^1258015012 is an apocalyptic number.

It is an amenable number.

1258015012 is a deficient number, since it is larger than the sum of its proper divisors (1028552348).

1258015012 is a wasteful number, since it uses less digits than its factorization.

1258015012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43491 (or 43489 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 1258015012 is about 35468.5073269231. The cubic root of 1258015012 is about 1079.5148175044.

The spelling of 1258015012 in words is "one billion, two hundred fifty-eight million, fifteen thousand, twelve".