129623097 has 16 divisors (see below), whose sum is σ = 175129920. Its totient is φ = 85272000.

The previous prime is 129623093. The next prime is 129623167. The reversal of 129623097 is 790326921.

It is not a de Polignac number, because 129623097 - 2² = 129623093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129623093) 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, 126447 + ... + 127467.

It is an arithmetic number, because the mean of its divisors is an integer number (10945620).

Almost surely, 2^129623097 is an apocalyptic number.

It is an amenable number.

129623097 is a deficient number, since it is larger than the sum of its proper divisors (45506823).

129623097 is a wasteful number, since it uses less digits than its factorization.

129623097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 129623097 is about 11385.2139637338. The cubic root of 129623097 is about 506.0896603031.

The spelling of 129623097 in words is "one hundred twenty-nine million, six hundred twenty-three thousand, ninety-seven".