129073607 has 4 divisors (see below), whose sum is σ = 139002360. Its totient is φ = 119144856.

The previous prime is 129073583. The next prime is 129073613. The reversal of 129073607 is 706370921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129073607 - 2⁶ = 129073543 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 (129073687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4964357 + ... + 4964382.

It is an arithmetic number, because the mean of its divisors is an integer number (34750590).

Almost surely, 2^129073607 is an apocalyptic number.

129073607 is a deficient number, since it is larger than the sum of its proper divisors (9928753).

129073607 is an equidigital number, since it uses as much as digits as its factorization.

129073607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9928752.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 129073607 is about 11361.0565969896. The cubic root of 129073607 is about 505.3735196937.

The spelling of 129073607 in words is "one hundred twenty-nine million, seventy-three thousand, six hundred seven".