137937771 has 12 divisors (see below), whose sum is σ = 199361448. Its totient is φ = 91904064.

The previous prime is 137937769. The next prime is 137937773. The reversal of 137937771 is 177739731.

It is an interprime number because it is at equal distance from previous prime (137937769) and next prime (137937773).

It is not a de Polignac number, because 137937771 - 2¹ = 137937769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137937773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16771 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (16613454).

Almost surely, 2^137937771 is an apocalyptic number.

137937771 is a deficient number, since it is larger than the sum of its proper divisors (61423677).

137937771 is a wasteful number, since it uses less digits than its factorization.

137937771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082 (or 9079 counting only the distinct ones).

The product of its digits is 194481, while the sum is 45.

The square root of 137937771 is about 11744.6911836795. The cubic root of 137937771 is about 516.6872377981.

The spelling of 137937771 in words is "one hundred thirty-seven million, nine hundred thirty-seven thousand, seven hundred seventy-one".