137424381 has 16 divisors (see below), whose sum is σ = 187536384. Its totient is φ = 89472944.

The previous prime is 137424361. The next prime is 137424403. The reversal of 137424381 is 183424731.

It is a cyclic number.

It is not a de Polignac number, because 137424381 - 2⁶ = 137424317 is a prime.

It is a super-2 number, since 2×137424381² = 37770920986466322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137424341) 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, 95590 + ... + 97016.

It is an arithmetic number, because the mean of its divisors is an integer number (11721024).

Almost surely, 2^137424381 is an apocalyptic number.

It is an amenable number.

137424381 is a deficient number, since it is larger than the sum of its proper divisors (50112003).

137424381 is a wasteful number, since it uses less digits than its factorization.

137424381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160.

The product of its digits is 16128, while the sum is 33.

The square root of 137424381 is about 11722.8145511221. The cubic root of 137424381 is about 516.0454222078.

The spelling of 137424381 in words is "one hundred thirty-seven million, four hundred twenty-four thousand, three hundred eighty-one".