137893898 has 8 divisors (see below), whose sum is σ = 213973380. Its totient is φ = 66569440.

The previous prime is 137893891. The next prime is 137893957. The reversal of 137893898 is 898398731.

It can be written as a sum of positive squares in 2 ways, for example, as 130347889 + 7546009 = 11417^2 + 2747^2 .

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

It is not an unprimeable number, because it can be changed into a prime (137893891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188683 + ... + 1188798.

Almost surely, 2^137893898 is an apocalyptic number.

137893898 is a deficient number, since it is larger than the sum of its proper divisors (76079482).

137893898 is a wasteful number, since it uses less digits than its factorization.

137893898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377512.

The product of its digits is 2612736, while the sum is 56.

The square root of 137893898 is about 11742.8232550780. The cubic root of 137893898 is about 516.6324521683.

The spelling of 137893898 in words is "one hundred thirty-seven million, eight hundred ninety-three thousand, eight hundred ninety-eight".