137436433 has 2 divisors, whose sum is σ = 137436434. Its totient is φ = 137436432.

The previous prime is 137436419. The next prime is 137436437. The reversal of 137436433 is 334634731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137194369 + 242064 = 11713^2 + 492^2 .

It is an emirp because it is prime and its reverse (334634731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137436433 - 2²⁵ = 103882001 is a prime.

It is not a weakly prime, because it can be changed into another prime (137436437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68718216 + 68718217.

It is an arithmetic number, because the mean of its divisors is an integer number (68718217).

Almost surely, 2^137436433 is an apocalyptic number.

It is an amenable number.

137436433 is a deficient number, since it is larger than the sum of its proper divisors (1).

137436433 is an equidigital number, since it uses as much as digits as its factorization.

137436433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 34.

The square root of 137436433 is about 11723.3285802284. The cubic root of 137436433 is about 516.0605073467.

The spelling of 137436433 in words is "one hundred thirty-seven million, four hundred thirty-six thousand, four hundred thirty-three".