137982890 has 16 divisors (see below), whose sum is σ = 248597640. Its totient is φ = 55142400.

The previous prime is 137982857. The next prime is 137982893. The reversal of 137982890 is 98289731.

137982890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42549529 + 95433361 = 6523^2 + 9769^2 .

It is not an unprimeable number, because it can be changed into a prime (137982893) 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, 6266 + ... + 17754.

Almost surely, 2^137982890 is an apocalyptic number.

137982890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137982890 is a deficient number, since it is larger than the sum of its proper divisors (110614750).

137982890 is a wasteful number, since it uses less digits than its factorization.

137982890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12697.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 137982890 is about 11746.6118519342. The cubic root of 137982890 is about 516.7435672332.

The spelling of 137982890 in words is "one hundred thirty-seven million, nine hundred eighty-two thousand, eight hundred ninety".