137487701 has 4 divisors (see below), whose sum is σ = 148063692. Its totient is φ = 126911712.

The previous prime is 137487683. The next prime is 137487709. The reversal of 137487701 is 107784731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86007076 + 51480625 = 9274^2 + 7175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137487701 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 (137487709) 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 3 ways as a sum of consecutive naturals, for example, 5287976 + ... + 5288001.

It is an arithmetic number, because the mean of its divisors is an integer number (37015923).

Almost surely, 2^137487701 is an apocalyptic number.

It is an amenable number.

137487701 is a deficient number, since it is larger than the sum of its proper divisors (10575991).

137487701 is a wasteful number, since it uses less digits than its factorization.

137487701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10575990.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 137487701 is about 11725.5149567087. The cubic root of 137487701 is about 516.1246681625.

The spelling of 137487701 in words is "one hundred thirty-seven million, four hundred eighty-seven thousand, seven hundred one".