137198788 has 12 divisors (see below), whose sum is σ = 241129980. Its totient is φ = 68304512.

The previous prime is 137198779. The next prime is 137198801. The reversal of 137198788 is 887891731.

It can be written as a sum of positive squares in 2 ways, for example, as 81577024 + 55621764 = 9032^2 + 7458^2 .

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 3 ways as a sum of consecutive naturals, for example, 72673 + ... + 74536.

It is an arithmetic number, because the mean of its divisors is an integer number (20094165).

Almost surely, 2^137198788 is an apocalyptic number.

It is an amenable number.

137198788 is a deficient number, since it is larger than the sum of its proper divisors (103931192).

137198788 is a wasteful number, since it uses less digits than its factorization.

137198788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147446 (or 147444 counting only the distinct ones).

The product of its digits is 677376, while the sum is 52.

The square root of 137198788 is about 11713.1886350387. The cubic root of 137198788 is about 515.7628910820.

The spelling of 137198788 in words is "one hundred thirty-seven million, one hundred ninety-eight thousand, seven hundred eighty-eight".