137374873 has 2 divisors, whose sum is σ = 137374874. Its totient is φ = 137374872.

The previous prime is 137374829. The next prime is 137374901. The reversal of 137374873 is 378473731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74442384 + 62932489 = 8628^2 + 7933^2 .

It is a cyclic number.

It is not a de Polignac number, because 137374873 - 2¹⁷ = 137243801 is a prime.

It is a super-2 number, since 2×137374873² = 37743711463532258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137374273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68687436 + 68687437.

It is an arithmetic number, because the mean of its divisors is an integer number (68687437).

Almost surely, 2^137374873 is an apocalyptic number.

It is an amenable number.

137374873 is a deficient number, since it is larger than the sum of its proper divisors (1).

137374873 is an equidigital number, since it uses as much as digits as its factorization.

137374873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 43.

The square root of 137374873 is about 11720.7027519684. The cubic root of 137374873 is about 515.9834452253.

The spelling of 137374873 in words is "one hundred thirty-seven million, three hundred seventy-four thousand, eight hundred seventy-three".