123397087 has 8 divisors (see below), whose sum is σ = 134704080. Its totient is φ = 112104960.

The previous prime is 123397073. The next prime is 123397103. The reversal of 123397087 is 780793321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123397087 - 2²³ = 115008479 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 (123397007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20589 + ... + 25897.

It is an arithmetic number, because the mean of its divisors is an integer number (16838010).

Almost surely, 2^123397087 is an apocalyptic number.

123397087 is a deficient number, since it is larger than the sum of its proper divisors (11306993).

123397087 is a wasteful number, since it uses less digits than its factorization.

123397087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 123397087 is about 11108.4241456653. The cubic root of 123397087 is about 497.8535816281.

The spelling of 123397087 in words is "one hundred twenty-three million, three hundred ninety-seven thousand, eighty-seven".