137893829 has 4 divisors (see below), whose sum is σ = 139159020. Its totient is φ = 136628640.

The previous prime is 137893807. The next prime is 137893831. The reversal of 137893829 is 928398731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 928398731 = 13 ⋅71415287.

It can be written as a sum of positive squares in 2 ways, for example, as 84676804 + 53217025 = 9202^2 + 7295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137893829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137893229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632432 + ... + 632649.

It is an arithmetic number, because the mean of its divisors is an integer number (34789755).

Almost surely, 2^137893829 is an apocalyptic number.

It is an amenable number.

137893829 is a deficient number, since it is larger than the sum of its proper divisors (1265191).

137893829 is a wasteful number, since it uses less digits than its factorization.

137893829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265190.

The product of its digits is 653184, while the sum is 50.

The square root of 137893829 is about 11742.8203171129. The cubic root of 137893829 is about 516.6323659967.

The spelling of 137893829 in words is "one hundred thirty-seven million, eight hundred ninety-three thousand, eight hundred twenty-nine".