137749933 has 2 divisors, whose sum is σ = 137749934. Its totient is φ = 137749932.

The previous prime is 137749919. The next prime is 137750023. The reversal of 137749933 is 339947731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134606404 + 3143529 = 11602^2 + 1773^2 .

It is a cyclic number.

It is not a de Polignac number, because 137749933 - 2¹⁷ = 137618861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137749033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68874966 + 68874967.

It is an arithmetic number, because the mean of its divisors is an integer number (68874967).

Almost surely, 2^137749933 is an apocalyptic number.

It is an amenable number.

137749933 is a deficient number, since it is larger than the sum of its proper divisors (1).

137749933 is an equidigital number, since it uses as much as digits as its factorization.

137749933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 46.

The square root of 137749933 is about 11736.6917400092. The cubic root of 137749933 is about 516.4525967603.

The spelling of 137749933 in words is "one hundred thirty-seven million, seven hundred forty-nine thousand, nine hundred thirty-three".