1901313812 has 24 divisors (see below), whose sum is σ = 3505283040. Its totient is φ = 899886240.

The previous prime is 1901313809. The next prime is 1901313839. The reversal of 1901313812 is 2183131091.

It is a super-2 number, since 2×1901313812² = 7229988423403942688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89762 + ... + 108902.

It is an arithmetic number, because the mean of its divisors is an integer number (146053460).

Almost surely, 2^1901313812 is an apocalyptic number.

It is an amenable number.

1901313812 is a deficient number, since it is larger than the sum of its proper divisors (1603969228).

1901313812 is a wasteful number, since it uses less digits than its factorization.

1901313812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20471 (or 20469 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1901313812 is about 43604.0572882845. The cubic root of 1901313812 is about 1238.8477442140.

The spelling of 1901313812 in words is "one billion, nine hundred one million, three hundred thirteen thousand, eight hundred twelve".