1697012125 has 16 divisors (see below), whose sum is σ = 2119446576. Its totient is φ = 1356600000.

The previous prime is 1697012123. The next prime is 1697012143. The reversal of 1697012125 is 5212107961.

It can be written as a sum of positive squares in 8 ways, for example, as 1220943364 + 476068761 = 34942^2 + 21819^2 .

It is not a de Polignac number, because 1697012125 - 2¹ = 1697012123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1697012123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195375 + ... + 203875.

It is an arithmetic number, because the mean of its divisors is an integer number (132465411).

Almost surely, 2^1697012125 is an apocalyptic number.

It is an amenable number.

1697012125 is a deficient number, since it is larger than the sum of its proper divisors (422434451).

1697012125 is an equidigital number, since it uses as much as digits as its factorization.

1697012125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113 (or 10103 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 1697012125 is about 41194.8070149625. The cubic root of 1697012125 is about 1192.7835703997.

The spelling of 1697012125 in words is "one billion, six hundred ninety-seven million, twelve thousand, one hundred twenty-five".