137929287 has 8 divisors (see below), whose sum is σ = 184194304. Its totient is φ = 91808568.

The previous prime is 137929277. The next prime is 137929301. The reversal of 137929287 is 782929731.

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

It is not a de Polignac number, because 137929287 - 2⁷ = 137929159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137929277) 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 7 ways as a sum of consecutive naturals, for example, 33823 + ... + 37680.

It is an arithmetic number, because the mean of its divisors is an integer number (23024288).

Almost surely, 2^137929287 is an apocalyptic number.

137929287 is a deficient number, since it is larger than the sum of its proper divisors (46265017).

137929287 is an equidigital number, since it uses as much as digits as its factorization.

137929287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72149.

The product of its digits is 381024, while the sum is 48.

The square root of 137929287 is about 11744.3299936608. The cubic root of 137929287 is about 516.6766444599.

The spelling of 137929287 in words is "one hundred thirty-seven million, nine hundred twenty-nine thousand, two hundred eighty-seven".