69133139 has 4 divisors (see below), whose sum is σ = 69168000. Its totient is φ = 69098280.

The previous prime is 69133111. The next prime is 69133159. The reversal of 69133139 is 93133196.

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 69133139 - 2²⁴ = 52355923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69133099 and 69133108.

It is not an unprimeable number, because it can be changed into a prime (69133109) 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, 14264 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (17292000).

Almost surely, 2^69133139 is an apocalyptic number.

69133139 is a deficient number, since it is larger than the sum of its proper divisors (34861).

69133139 is a wasteful number, since it uses less digits than its factorization.

69133139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34860.

The product of its digits is 13122, while the sum is 35.

The square root of 69133139 is about 8314.6340268228. The cubic root of 69133139 is about 410.4202294599.

The spelling of 69133139 in words is "sixty-nine million, one hundred thirty-three thousand, one hundred thirty-nine".