69380129 has 12 divisors (see below), whose sum is σ = 86916564. Its totient is φ = 54893664.

The previous prime is 69380099. The next prime is 69380137. The reversal of 69380129 is 92108396.

It can be written as a sum of positive squares in 2 ways, for example, as 42837025 + 26543104 = 6545^2 + 5152^2 .

It is a de Polignac number, because none of the positive numbers 2^k-69380129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69380092 and 69380101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69380329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53822 + ... + 55095.

It is an arithmetic number, because the mean of its divisors is an integer number (7243047).

Almost surely, 2^69380129 is an apocalyptic number.

It is an amenable number.

69380129 is a deficient number, since it is larger than the sum of its proper divisors (17536435).

69380129 is a wasteful number, since it uses less digits than its factorization.

69380129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108944 (or 108937 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 69380129 is about 8329.4735127738. The cubic root of 69380129 is about 410.9084141076.

The spelling of 69380129 in words is "sixty-nine million, three hundred eighty thousand, one hundred twenty-nine".