137724099 has 8 divisors (see below), whose sum is σ = 185034432. Its totient is φ = 91114920.

The previous prime is 137724077. The next prime is 137724109. The reversal of 137724099 is 990427731.

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

It is not a de Polignac number, because 137724099 - 2²³ = 129335491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137724099.

It is not an unprimeable number, because it can be changed into a prime (137724019) 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, 174829 + ... + 175614.

It is an arithmetic number, because the mean of its divisors is an integer number (23129304).

Almost surely, 2^137724099 is an apocalyptic number.

137724099 is a deficient number, since it is larger than the sum of its proper divisors (47310333).

137724099 is a wasteful number, since it uses less digits than its factorization.

137724099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350577.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 137724099 is about 11735.5911227343. The cubic root of 137724099 is about 516.4203090966.

It can be divided in two parts, 13772 and 4099, that added together give a palindrome (17871).

The spelling of 137724099 in words is "one hundred thirty-seven million, seven hundred twenty-four thousand, ninety-nine".