136937473 has 2 divisors, whose sum is σ = 136937474. Its totient is φ = 136937472.

The previous prime is 136937453. The next prime is 136937477. The reversal of 136937473 is 374739631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111767184 + 25170289 = 10572^2 + 5017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136937473 is a prime.

It is equal to p_7748890 and since 136937473 and 7748890 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (136937477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68468736 + 68468737.

It is an arithmetic number, because the mean of its divisors is an integer number (68468737).

It is a Proth number, since it is equal to 4179 ⋅ 2¹⁵ + 1 and 4179 < 2¹⁵.

Almost surely, 2^136937473 is an apocalyptic number.

It is an amenable number.

136937473 is a deficient number, since it is larger than the sum of its proper divisors (1).

136937473 is an equidigital number, since it uses as much as digits as its factorization.

136937473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 43.

The square root of 136937473 is about 11702.0285848224. The cubic root of 136937473 is about 515.4352345487.

The spelling of 136937473 in words is "one hundred thirty-six million, nine hundred thirty-seven thousand, four hundred seventy-three".