139976741 has 4 divisors (see below), whose sum is σ = 140011500. Its totient is φ = 139941984.

The previous prime is 139976737. The next prime is 139976783. The reversal of 139976741 is 147679931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103022500 + 36954241 = 10150^2 + 6079^2 .

It is a cyclic number.

It is not a de Polignac number, because 139976741 - 2² = 139976737 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 (139976701) 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, 10406 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (35002875).

Almost surely, 2^139976741 is an apocalyptic number.

It is an amenable number.

139976741 is a deficient number, since it is larger than the sum of its proper divisors (34759).

139976741 is an equidigital number, since it uses as much as digits as its factorization.

139976741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34758.

The product of its digits is 285768, while the sum is 47.

The square root of 139976741 is about 11831.1766532328. The cubic root of 139976741 is about 519.2206533020.

The spelling of 139976741 in words is "one hundred thirty-nine million, nine hundred seventy-six thousand, seven hundred forty-one".