138376371 has 16 divisors (see below), whose sum is σ = 218131200. Its totient is φ = 76345248.

The previous prime is 138376351. The next prime is 138376387. The reversal of 138376371 is 173673831.

It is not a de Polignac number, because 138376371 - 2¹¹ = 138374323 is a prime.

It is a super-2 number, since 2×138376371² = 38296040102259282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138376331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113001 + ... + 114218.

It is an arithmetic number, because the mean of its divisors is an integer number (13633200).

Almost surely, 2^138376371 is an apocalyptic number.

138376371 is a deficient number, since it is larger than the sum of its proper divisors (79754829).

138376371 is a wasteful number, since it uses less digits than its factorization.

138376371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227258.

The product of its digits is 63504, while the sum is 39.

The square root of 138376371 is about 11763.3486303858. The cubic root of 138376371 is about 517.2342942743.

The spelling of 138376371 in words is "one hundred thirty-eight million, three hundred seventy-six thousand, three hundred seventy-one".