137507869 has 4 divisors (see below), whose sum is σ = 143486496. Its totient is φ = 131529244.

The previous prime is 137507857. The next prime is 137507911. The reversal of 137507869 is 968705731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137507869 - 2¹⁷ = 137376797 is a prime.

It is a super-2 number, since 2×137507869² = 37816828073842322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137547869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989279 + ... + 2989324.

It is an arithmetic number, because the mean of its divisors is an integer number (35871624).

Almost surely, 2^137507869 is an apocalyptic number.

It is an amenable number.

137507869 is a deficient number, since it is larger than the sum of its proper divisors (5978627).

137507869 is an equidigital number, since it uses as much as digits as its factorization.

137507869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978626.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 137507869 is about 11726.3749300455. The cubic root of 137507869 is about 516.1499036158.

The spelling of 137507869 in words is "one hundred thirty-seven million, five hundred seven thousand, eight hundred sixty-nine".