137456869 has 4 divisors (see below), whose sum is σ = 149952960. Its totient is φ = 124960780.

The previous prime is 137456867. The next prime is 137456873. The reversal of 137456869 is 968654731.

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 137456869 - 2¹ = 137456867 is a prime.

It is a super-2 number, since 2×137456869² = 37788781670566322, 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 (137456861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6248029 + ... + 6248050.

It is an arithmetic number, because the mean of its divisors is an integer number (37488240).

Almost surely, 2^137456869 is an apocalyptic number.

It is an amenable number.

137456869 is a deficient number, since it is larger than the sum of its proper divisors (12496091).

137456869 is a wasteful number, since it uses less digits than its factorization.

137456869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12496090.

The product of its digits is 1088640, while the sum is 49.

The square root of 137456869 is about 11724.2001432934. The cubic root of 137456869 is about 516.0860844799.

The spelling of 137456869 in words is "one hundred thirty-seven million, four hundred fifty-six thousand, eight hundred sixty-nine".