137646733 has 6 divisors (see below), whose sum is σ = 160119726. Its totient is φ = 117982872.

The previous prime is 137646689. The next prime is 137646737. The reversal of 137646733 is 337646731.

It can be written as a sum of positive squares in only one way, i.e., 128754409 + 8892324 = 11347^2 + 2982^2 .

It is not a de Polignac number, because 137646733 - 2¹⁷ = 137515661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137646737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404510 + ... + 1404607.

It is an arithmetic number, because the mean of its divisors is an integer number (26686621).

Almost surely, 2^137646733 is an apocalyptic number.

It is an amenable number.

137646733 is a deficient number, since it is larger than the sum of its proper divisors (22472993).

137646733 is an equidigital number, since it uses as much as digits as its factorization.

137646733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809131 (or 2809124 counting only the distinct ones).

The product of its digits is 190512, while the sum is 40.

The square root of 137646733 is about 11732.2944473790. The cubic root of 137646733 is about 516.3235919220.

The spelling of 137646733 in words is "one hundred thirty-seven million, six hundred forty-six thousand, seven hundred thirty-three".