123917097 has 16 divisors (see below), whose sum is σ = 175286592. Its totient is φ = 77598720.

The previous prime is 123917083. The next prime is 123917111. The reversal of 123917097 is 790719321.

It is an interprime number because it is at equal distance from previous prime (123917083) and next prime (123917111).

It is not a de Polignac number, because 123917097 - 2¹⁰ = 123916073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123917197) 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, 27322 + ... + 31532.

It is an arithmetic number, because the mean of its divisors is an integer number (10955412).

Almost surely, 2^123917097 is an apocalyptic number.

123917097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

123917097 is a deficient number, since it is larger than the sum of its proper divisors (51369495).

123917097 is a wasteful number, since it uses less digits than its factorization.

123917097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 123917097 is about 11131.8056486807. The cubic root of 123917097 is about 498.5519396242.

It can be divided in two parts, 1239 and 17097, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 123917097 in words is "one hundred twenty-three million, nine hundred seventeen thousand, ninety-seven".