70736137 has 2 divisors, whose sum is σ = 70736138. Its totient is φ = 70736136.

The previous prime is 70736129. The next prime is 70736143. The reversal of 70736137 is 73163707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53934336 + 16801801 = 7344^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 70736137 - 2³ = 70736129 is a prime.

It is not a weakly prime, because it can be changed into another prime (70736437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35368068 + 35368069.

It is an arithmetic number, because the mean of its divisors is an integer number (35368069).

Almost surely, 2^70736137 is an apocalyptic number.

It is an amenable number.

70736137 is a deficient number, since it is larger than the sum of its proper divisors (1).

70736137 is an equidigital number, since it uses as much as digits as its factorization.

70736137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18522, while the sum is 34.

The square root of 70736137 is about 8410.4778104457. The cubic root of 70736137 is about 413.5681763922.

The spelling of 70736137 in words is "seventy million, seven hundred thirty-six thousand, one hundred thirty-seven".