149742136279 has 2 divisors, whose sum is σ = 149742136280. Its totient is φ = 149742136278.

The previous prime is 149742136277. The next prime is 149742136361. The reversal of 149742136279 is 972631247941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149742136279 - 2¹ = 149742136277 is a prime.

Together with 149742136277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149742136277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74871068139 + 74871068140.

It is an arithmetic number, because the mean of its divisors is an integer number (74871068140).

Almost surely, 2^149742136279 is an apocalyptic number.

149742136279 is a deficient number, since it is larger than the sum of its proper divisors (1).

149742136279 is an equidigital number, since it uses as much as digits as its factorization.

149742136279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 55.

The spelling of 149742136279 in words is "one hundred forty-nine billion, seven hundred forty-two million, one hundred thirty-six thousand, two hundred seventy-nine".