1901257012 has 24 divisors (see below), whose sum is σ = 3356750880. Its totient is φ = 942208800.

The previous prime is 1901257009. The next prime is 1901257037. The reversal of 1901257012 is 2107521091.

It is a super-2 number, since 2×1901257012² = 7229556451358336288, 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 7 ways as a sum of consecutive naturals, for example, 373887 + ... + 378937.

It is an arithmetic number, because the mean of its divisors is an integer number (139864620).

Almost surely, 2^1901257012 is an apocalyptic number.

It is an amenable number.

1901257012 is a deficient number, since it is larger than the sum of its proper divisors (1455493868).

1901257012 is a wasteful number, since it uses less digits than its factorization.

1901257012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871 (or 5869 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 1901257012 is about 43603.4059678828. The cubic root of 1901257012 is about 1238.8354076125.

The spelling of 1901257012 in words is "one billion, nine hundred one million, two hundred fifty-seven thousand, twelve".