137842079 has 4 divisors (see below), whose sum is σ = 138291384. Its totient is φ = 137392776.

The previous prime is 137842063. The next prime is 137842097. The reversal of 137842079 is 970248731.

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

It is a cyclic number.

It is not a de Polignac number, because 137842079 - 2⁴ = 137842063 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 (137842009) 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, 224192 + ... + 224805.

It is an arithmetic number, because the mean of its divisors is an integer number (34572846).

Almost surely, 2^137842079 is an apocalyptic number.

137842079 is a deficient number, since it is larger than the sum of its proper divisors (449305).

137842079 is an equidigital number, since it uses as much as digits as its factorization.

137842079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449304.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 137842079 is about 11740.6166362760. The cubic root of 137842079 is about 516.5677291420.

The spelling of 137842079 in words is "one hundred thirty-seven million, eight hundred forty-two thousand, seventy-nine".