1813954125 has 32 divisors (see below), whose sum is σ = 3021378048. Its totient is φ = 966494400.

The previous prime is 1813954067. The next prime is 1813954141. The reversal of 1813954125 is 5214593181.

It is not a de Polignac number, because 1813954125 - 2¹⁰ = 1813953101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555999 + ... + 559251.

It is an arithmetic number, because the mean of its divisors is an integer number (94418064).

Almost surely, 2^1813954125 is an apocalyptic number.

1813954125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1813954125 is a deficient number, since it is larger than the sum of its proper divisors (1207423923).

1813954125 is a wasteful number, since it uses less digits than its factorization.

1813954125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758 (or 4748 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 1813954125 is about 42590.5403229403. The cubic root of 1813954125 is about 1219.5757113231.

The spelling of 1813954125 in words is "one billion, eight hundred thirteen million, nine hundred fifty-four thousand, one hundred twenty-five".