137420877 has 16 divisors (see below), whose sum is σ = 211643712. Its totient is φ = 78385920.

The previous prime is 137420867. The next prime is 137420887. The reversal of 137420877 is 778024731.

It is an interprime number because it is at equal distance from previous prime (137420867) and next prime (137420887).

It is not a de Polignac number, because 137420877 - 2⁶ = 137420813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137420867) 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, 121918 + ... + 123039.

It is an arithmetic number, because the mean of its divisors is an integer number (13227732).

Almost surely, 2^137420877 is an apocalyptic number.

137420877 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

137420877 is a deficient number, since it is larger than the sum of its proper divisors (74222835).

137420877 is a wasteful number, since it uses less digits than its factorization.

137420877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244988.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 137420877 is about 11722.6650980057. The cubic root of 137420877 is about 516.0410361872.

The spelling of 137420877 in words is "one hundred thirty-seven million, four hundred twenty thousand, eight hundred seventy-seven".