137945026 has 16 divisors (see below), whose sum is σ = 209392920. Its totient is φ = 68152320.

The previous prime is 137945023. The next prime is 137945051. The reversal of 137945026 is 620549731.

137945026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 11745²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 137945025 + 1 = 11745^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (137945023) 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, 64990 + ... + 67078.

Almost surely, 2^137945026 is an apocalyptic number.

137945026 is a deficient number, since it is larger than the sum of its proper divisors (71447894).

137945026 is a wasteful number, since it uses less digits than its factorization.

137945026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 137945026 is about 11745.0000425713. Note that the first 4 decimals coincide. The cubic root of 137945026 is about 516.6962962312.

The spelling of 137945026 in words is "one hundred thirty-seven million, nine hundred forty-five thousand, twenty-six".