137493061 has 2 divisors, whose sum is σ = 137493062. Its totient is φ = 137493060.

The previous prime is 137493053. The next prime is 137493071. The reversal of 137493061 is 160394731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118396161 + 19096900 = 10881^2 + 4370^2 .

It is a cyclic number.

It is not a de Polignac number, because 137493061 - 2³ = 137493053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137493071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68746530 + 68746531.

It is an arithmetic number, because the mean of its divisors is an integer number (68746531).

Almost surely, 2^137493061 is an apocalyptic number.

It is an amenable number.

137493061 is a deficient number, since it is larger than the sum of its proper divisors (1).

137493061 is an equidigital number, since it uses as much as digits as its factorization.

137493061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 137493061 is about 11725.7435158714. The cubic root of 137493061 is about 516.1313751679.

The spelling of 137493061 in words is "one hundred thirty-seven million, four hundred ninety-three thousand, sixty-one".