137572099 has 4 divisors (see below), whose sum is σ = 157225264. Its totient is φ = 117918936.

The previous prime is 137572091. The next prime is 137572121. The reversal of 137572099 is 990275731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990275731 = 29 ⋅34147439.

It is a cyclic number.

It is not a de Polignac number, because 137572099 - 2³ = 137572091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137572091) 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, 9826572 + ... + 9826585.

It is an arithmetic number, because the mean of its divisors is an integer number (39306316).

Almost surely, 2^137572099 is an apocalyptic number.

137572099 is a deficient number, since it is larger than the sum of its proper divisors (19653165).

137572099 is an equidigital number, since it uses as much as digits as its factorization.

137572099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19653164.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 137572099 is about 11729.1133083452. The cubic root of 137572099 is about 516.2302557393.

The spelling of 137572099 in words is "one hundred thirty-seven million, five hundred seventy-two thousand, ninety-nine".