137000621 has 8 divisors (see below), whose sum is σ = 145078080. Its totient is φ = 129009888.

The previous prime is 137000593. The next prime is 137000641. The reversal of 137000621 is 126000731.

It is a happy number.

137000621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137000621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137000593 and 137000602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137000641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18416 + ... + 24761.

It is an arithmetic number, because the mean of its divisors is an integer number (18134760).

Almost surely, 2^137000621 is an apocalyptic number.

It is an amenable number.

137000621 is a deficient number, since it is larger than the sum of its proper divisors (8077459).

137000621 is a wasteful number, since it uses less digits than its factorization.

137000621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43363.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 137000621 is about 11704.7264384948. The cubic root of 137000621 is about 515.5144524612.

The spelling of 137000621 in words is "one hundred thirty-seven million, six hundred twenty-one", and thus it is an aban number.