137885761 has 8 divisors (see below), whose sum is σ = 148861160. Its totient is φ = 126963072.

The previous prime is 137885729. The next prime is 137885767. The reversal of 137885761 is 167588731.

It can be written as a sum of positive squares in 4 ways, for example, as 11458225 + 126427536 = 3385^2 + 11244^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137885761 - 2⁵ = 137885729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137885767) 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 in 7 ways as a sum of consecutive naturals, for example, 7650 + ... + 18283.

It is an arithmetic number, because the mean of its divisors is an integer number (18607645).

Almost surely, 2^137885761 is an apocalyptic number.

It is an amenable number.

137885761 is a deficient number, since it is larger than the sum of its proper divisors (10975399).

137885761 is a wasteful number, since it uses less digits than its factorization.

137885761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26355.

The product of its digits is 282240, while the sum is 46.

The square root of 137885761 is about 11742.4767830301. The cubic root of 137885761 is about 516.6222899566.

The spelling of 137885761 in words is "one hundred thirty-seven million, eight hundred eighty-five thousand, seven hundred sixty-one".