137530999 has 4 divisors (see below), whose sum is σ = 137761200. Its totient is φ = 137300800.

The previous prime is 137530979. The next prime is 137531011. The reversal of 137530999 is 999035731.

137530999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 137530999 - 2⁹ = 137530487 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 (137530979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114202 + ... + 115399.

It is an arithmetic number, because the mean of its divisors is an integer number (34440300).

Almost surely, 2^137530999 is an apocalyptic number.

137530999 is a deficient number, since it is larger than the sum of its proper divisors (230201).

137530999 is an equidigital number, since it uses as much as digits as its factorization.

137530999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230200.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 137530999 is about 11727.3611268691. The cubic root of 137530999 is about 516.1788422698.

The spelling of 137530999 in words is "one hundred thirty-seven million, five hundred thirty thousand, nine hundred ninety-nine".