1897906125 has 32 divisors (see below), whose sum is σ = 3179404800. Its totient is φ = 1005393600.

The previous prime is 1897906091. The next prime is 1897906151. The reversal of 1897906125 is 5216097981.

It is not a de Polignac number, because 1897906125 - 2¹³ = 1897897933 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, 38892 + ... + 72858.

It is an arithmetic number, because the mean of its divisors is an integer number (99356400).

Almost surely, 2^1897906125 is an apocalyptic number.

1897906125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1897906125 is a deficient number, since it is larger than the sum of its proper divisors (1281498675).

1897906125 is a wasteful number, since it uses less digits than its factorization.

1897906125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34134 (or 34124 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 48.

The square root of 1897906125 is about 43564.9644209656. The cubic root of 1897906125 is about 1238.1071808659.

The spelling of 1897906125 in words is "one billion, eight hundred ninety-seven million, nine hundred six thousand, one hundred twenty-five".