137823915 has 16 divisors (see below), whose sum is σ = 220677408. Its totient is φ = 73453056.

The previous prime is 137823877. The next prime is 137823943. The reversal of 137823915 is 519328731.

It is not a de Polignac number, because 137823915 - 2¹³ = 137815723 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27267 + ... + 31923.

It is an arithmetic number, because the mean of its divisors is an integer number (13792338).

Almost surely, 2^137823915 is an apocalyptic number.

137823915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

137823915 is a deficient number, since it is larger than the sum of its proper divisors (82853493).

137823915 is a wasteful number, since it uses less digits than its factorization.

137823915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638.

The product of its digits is 45360, while the sum is 39.

The square root of 137823915 is about 11739.8430568726. The cubic root of 137823915 is about 516.5450380826.

The spelling of 137823915 in words is "one hundred thirty-seven million, eight hundred twenty-three thousand, nine hundred fifteen".