149253822479 has 4 divisors (see below), whose sum is σ = 157109286840. Its totient is φ = 141398358120.

The previous prime is 149253822469. The next prime is 149253822541. The reversal of 149253822479 is 974228352941.

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 149253822479 - 2¹⁶ = 149253756943 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 (149253822469) 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, 3927732152 + ... + 3927732189.

It is an arithmetic number, because the mean of its divisors is an integer number (39277321710).

Almost surely, 2^149253822479 is an apocalyptic number.

149253822479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149253822479 is a deficient number, since it is larger than the sum of its proper divisors (7855464361).

149253822479 is an equidigital number, since it uses as much as digits as its factorization.

149253822479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7855464360.

The product of its digits is 8709120, while the sum is 56.

The spelling of 149253822479 in words is "one hundred forty-nine billion, two hundred fifty-three million, eight hundred twenty-two thousand, four hundred seventy-nine".