137124073 has 2 divisors, whose sum is σ = 137124074. Its totient is φ = 137124072.

The previous prime is 137124011. The next prime is 137124079. The reversal of 137124073 is 370421731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127961344 + 9162729 = 11312^2 + 3027^2 .

It is an emirp because it is prime and its reverse (370421731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137124073 - 2¹⁷ = 136993001 is a prime.

It is a super-2 number, since 2×137124073² = 37606022792218658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137124079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68562036 + 68562037.

It is an arithmetic number, because the mean of its divisors is an integer number (68562037).

Almost surely, 2^137124073 is an apocalyptic number.

It is an amenable number.

137124073 is a deficient number, since it is larger than the sum of its proper divisors (1).

137124073 is an equidigital number, since it uses as much as digits as its factorization.

137124073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 137124073 is about 11709.9988471391. The cubic root of 137124073 is about 515.6692502605.

The spelling of 137124073 in words is "one hundred thirty-seven million, one hundred twenty-four thousand, seventy-three".