137166387 has 8 divisors (see below), whose sum is σ = 193646736. Its totient is φ = 86065152.

The previous prime is 137166349. The next prime is 137166409. The reversal of 137166387 is 783661731.

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

It is not a de Polignac number, because 137166387 - 2⁸ = 137166131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137166287) 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, 1344718 + ... + 1344819.

It is an arithmetic number, because the mean of its divisors is an integer number (24205842).

Almost surely, 2^137166387 is an apocalyptic number.

137166387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

137166387 is a deficient number, since it is larger than the sum of its proper divisors (56480349).

137166387 is a wasteful number, since it uses less digits than its factorization.

137166387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689557.

The product of its digits is 127008, while the sum is 42.

The square root of 137166387 is about 11711.8054543268. The cubic root of 137166387 is about 515.7222868625.

The spelling of 137166387 in words is "one hundred thirty-seven million, one hundred sixty-six thousand, three hundred eighty-seven".