69036137 has 4 divisors (see below), whose sum is σ = 69322836. Its totient is φ = 68749440.

The previous prime is 69036127. The next prime is 69036193. The reversal of 69036137 is 73163096.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55115776 + 13920361 = 7424^2 + 3731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69036137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69036097 and 69036106.

It is not an unprimeable number, because it can be changed into a prime (69036127) 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, 142988 + ... + 143469.

It is an arithmetic number, because the mean of its divisors is an integer number (17330709).

Almost surely, 2^69036137 is an apocalyptic number.

It is an amenable number.

69036137 is a deficient number, since it is larger than the sum of its proper divisors (286699).

69036137 is a wasteful number, since it uses less digits than its factorization.

69036137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286698.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 69036137 is about 8308.7987699787. The cubic root of 69036137 is about 410.2281835115.

The spelling of 69036137 in words is "sixty-nine million, thirty-six thousand, one hundred thirty-seven".