69993137 has 2 divisors, whose sum is σ = 69993138. Its totient is φ = 69993136.

The previous prime is 69993127. The next prime is 69993173. The reversal of 69993137 is 73139996.

Together with next prime (69993173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 23193856 = 6841^2 + 4816^2 .

It is a cyclic number.

It is not a de Polignac number, because 69993137 - 2⁶ = 69993073 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 69993091 and 69993100.

It is not a weakly prime, because it can be changed into another prime (69993127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34996568 + 34996569.

It is an arithmetic number, because the mean of its divisors is an integer number (34996569).

Almost surely, 2^69993137 is an apocalyptic number.

It is an amenable number.

69993137 is a deficient number, since it is larger than the sum of its proper divisors (1).

69993137 is an equidigital number, since it uses as much as digits as its factorization.

69993137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 47.

The square root of 69993137 is about 8366.1901125901. The cubic root of 69993137 is about 412.1150607878.

The spelling of 69993137 in words is "sixty-nine million, nine hundred ninety-three thousand, one hundred thirty-seven".