137889147 has 16 divisors (see below), whose sum is σ = 207037440. Its totient is φ = 80872800.

The previous prime is 137889119. The next prime is 137889161. The reversal of 137889147 is 741988731.

It is not a de Polignac number, because 137889147 - 2⁶ = 137889083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137889096 and 137889105.

It is not an unprimeable number, because it can be changed into a prime (137889187) 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, 66372 + ... + 68417.

It is an arithmetic number, because the mean of its divisors is an integer number (12939840).

Almost surely, 2^137889147 is an apocalyptic number.

137889147 is a deficient number, since it is larger than the sum of its proper divisors (69148293).

137889147 is a wasteful number, since it uses less digits than its factorization.

137889147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134834.

The product of its digits is 338688, while the sum is 48.

The square root of 137889147 is about 11742.6209595644. The cubic root of 137889147 is about 516.6265187442.

It can be divided in two parts, 1378 and 89147, that added together give a triangular number (90525 = T₄₂₅).

The spelling of 137889147 in words is "one hundred thirty-seven million, eight hundred eighty-nine thousand, one hundred forty-seven".