1901634315 has 16 divisors (see below), whose sum is σ = 3477274368. Its totient is φ = 869318496.

The previous prime is 1901634283. The next prime is 1901634337. The reversal of 1901634315 is 5134361091.

It is not a de Polignac number, because 1901634315 - 2⁵ = 1901634283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9055297 + ... + 9055506.

It is an arithmetic number, because the mean of its divisors is an integer number (217329648).

Almost surely, 2^1901634315 is an apocalyptic number.

1901634315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1901634315 is a deficient number, since it is larger than the sum of its proper divisors (1575640053).

1901634315 is a wasteful number, since it uses less digits than its factorization.

1901634315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18110818.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1901634315 is about 43607.7322845387. The cubic root of 1901634315 is about 1238.9173508386.

The spelling of 1901634315 in words is "one billion, nine hundred one million, six hundred thirty-four thousand, three hundred fifteen".