13097775 has 12 divisors (see below), whose sum is σ = 21655112. Its totient is φ = 6985440.

The previous prime is 13097771. The next prime is 13097797. The reversal of 13097775 is 57779031.

It is a happy number.

It is not a de Polignac number, because 13097775 - 2² = 13097771 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 (13097771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87244 + ... + 87393.

Almost surely, 2^13097775 is an apocalyptic number.

13097775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13097775 is a deficient number, since it is larger than the sum of its proper divisors (8557337).

13097775 is a wasteful number, since it uses less digits than its factorization.

13097775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174650 (or 174645 counting only the distinct ones).

The product of its (nonzero) digits is 46305, while the sum is 39.

The square root of 13097775 is about 3619.0848290694. The cubic root of 13097775 is about 235.7214886950.

The spelling of 13097775 in words is "thirteen million, ninety-seven thousand, seven hundred seventy-five".