137220898 has 16 divisors (see below), whose sum is σ = 216110016. Its totient is φ = 65221200.

The previous prime is 137220893. The next prime is 137220899. The reversal of 137220898 is 898022731.

It is a self number, because there is not a number n which added to its sum of digits gives 137220898.

It is not an unprimeable number, because it can be changed into a prime (137220893) 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, 1653 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (13506876).

Almost surely, 2^137220898 is an apocalyptic number.

137220898 is a deficient number, since it is larger than the sum of its proper divisors (78889118).

137220898 is a wasteful number, since it uses less digits than its factorization.

137220898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18489.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 137220898 is about 11714.1324049201. The cubic root of 137220898 is about 515.7905951776.

The spelling of 137220898 in words is "one hundred thirty-seven million, two hundred twenty thousand, eight hundred ninety-eight".