137900494 has 4 divisors (see below), whose sum is σ = 206850744. Its totient is φ = 68950246.

The previous prime is 137900489. The next prime is 137900551. The reversal of 137900494 is 494009731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494009731 = 4357 ⋅113383.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34475122 + ... + 34475125.

It is an arithmetic number, because the mean of its divisors is an integer number (51712686).

Almost surely, 2^137900494 is an apocalyptic number.

137900494 is a deficient number, since it is larger than the sum of its proper divisors (68950250).

137900494 is an equidigital number, since it uses as much as digits as its factorization.

137900494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68950249.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 137900494 is about 11743.1041041115. The cubic root of 137900494 is about 516.6406895484.

The spelling of 137900494 in words is "one hundred thirty-seven million, nine hundred thousand, four hundred ninety-four".