137976369 has 8 divisors (see below), whose sum is σ = 194790240. Its totient is φ = 86573376.

The previous prime is 137976343. The next prime is 137976409. The reversal of 137976369 is 963679731.

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

It is not a de Polignac number, because 137976369 - 2¹² = 137972273 is a prime.

It is a super-2 number, since 2×137976369² = 38074956804848322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 2705419 = 137976369 / (1 + 3 + 7 + 9 + 7 + 6 + 3 + 6 + 9).

It is not an unprimeable number, because it can be changed into a prime (137976269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352659 + ... + 1352760.

It is an arithmetic number, because the mean of its divisors is an integer number (24348780).

Almost surely, 2^137976369 is an apocalyptic number.

It is an amenable number.

137976369 is a deficient number, since it is larger than the sum of its proper divisors (56813871).

137976369 is a wasteful number, since it uses less digits than its factorization.

137976369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705439.

The product of its digits is 1285956, while the sum is 51.

The square root of 137976369 is about 11746.3342792550. The cubic root of 137976369 is about 516.7354267604.

The spelling of 137976369 in words is "one hundred thirty-seven million, nine hundred seventy-six thousand, three hundred sixty-nine".