137268499 has 4 divisors (see below), whose sum is σ = 137296936. Its totient is φ = 137240064.

The previous prime is 137268497. The next prime is 137268517. The reversal of 137268499 is 994862731.

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 137268499 - 2¹ = 137268497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137268493) 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, 4974 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (34324234).

Almost surely, 2^137268499 is an apocalyptic number.

137268499 is a deficient number, since it is larger than the sum of its proper divisors (28437).

137268499 is an equidigital number, since it uses as much as digits as its factorization.

137268499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28436.

The product of its digits is 653184, while the sum is 49.

The square root of 137268499 is about 11716.1640053389. The cubic root of 137268499 is about 515.8502297037.

The spelling of 137268499 in words is "one hundred thirty-seven million, two hundred sixty-eight thousand, four hundred ninety-nine".