137078890 has 32 divisors (see below), whose sum is σ = 266308560. Its totient is φ = 50502144.

The previous prime is 137078861. The next prime is 137078891. The reversal of 137078890 is 98870731.

It can be written as a sum of positive squares in 8 ways, for example, as 259081 + 136819809 = 509^2 + 11697^2 .

It is not an unprimeable number, because it can be changed into a prime (137078891) 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, 79356 + ... + 81064.

Almost surely, 2^137078890 is an apocalyptic number.

137078890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137078890 is a deficient number, since it is larger than the sum of its proper divisors (129229670).

137078890 is a wasteful number, since it uses less digits than its factorization.

137078890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 137078890 is about 11708.0694394934. The cubic root of 137078890 is about 515.6126055913.

The spelling of 137078890 in words is "one hundred thirty-seven million, seventy-eight thousand, eight hundred ninety".