137840451 has 32 divisors (see below), whose sum is σ = 219317760. Its totient is φ = 75339264.

The previous prime is 137840411. The next prime is 137840453. The reversal of 137840451 is 154048731.

It is not a de Polignac number, because 137840451 - 2⁶ = 137840387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137840453) 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 31 ways as a sum of consecutive naturals, for example, 67816 + ... + 69818.

It is an arithmetic number, because the mean of its divisors is an integer number (6853680).

Almost surely, 2^137840451 is an apocalyptic number.

137840451 is a deficient number, since it is larger than the sum of its proper divisors (81477309).

137840451 is a wasteful number, since it uses less digits than its factorization.

137840451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 137840451 is about 11740.5473041081. The cubic root of 137840451 is about 516.5656954727.

The spelling of 137840451 in words is "one hundred thirty-seven million, eight hundred forty thousand, four hundred fifty-one".