137739293 has 4 divisors (see below), whose sum is σ = 142182528. Its totient is φ = 133296060.

The previous prime is 137739289. The next prime is 137739307. The reversal of 137739293 is 392937731.

137739293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137739293 - 2² = 137739289 is a prime.

It is a super-2 number, since 2×137739293² = 37944225672279698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137739223) 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, 2221571 + ... + 2221632.

It is an arithmetic number, because the mean of its divisors is an integer number (35545632).

Almost surely, 2^137739293 is an apocalyptic number.

It is an amenable number.

137739293 is a deficient number, since it is larger than the sum of its proper divisors (4443235).

137739293 is an equidigital number, since it uses as much as digits as its factorization.

137739293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443234.

The product of its digits is 214326, while the sum is 44.

The square root of 137739293 is about 11736.2384519061. The cubic root of 137739293 is about 516.4392992412.

The spelling of 137739293 in words is "one hundred thirty-seven million, seven hundred thirty-nine thousand, two hundred ninety-three".