102697231 has 32 divisors (see below), whose sum is σ = 133217280. Its totient is φ = 76944384.

The previous prime is 102697213. The next prime is 102697241. The reversal of 102697231 is 132796201.

It is not a de Polignac number, because 102697231 - 2¹¹ = 102695183 is a prime.

It is a super-2 number, since 2×102697231² = 21093442510134722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102697193 and 102697202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102697211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290751 + ... + 291103.

It is an arithmetic number, because the mean of its divisors is an integer number (4163040).

Almost surely, 2^102697231 is an apocalyptic number.

102697231 is a deficient number, since it is larger than the sum of its proper divisors (30520049).

102697231 is a wasteful number, since it uses less digits than its factorization.

102697231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 102697231 is about 10133.9642292639. The cubic root of 102697231 is about 468.2950616373.

The spelling of 102697231 in words is "one hundred two million, six hundred ninety-seven thousand, two hundred thirty-one".