274139131481 has 4 divisors (see below), whose sum is σ = 275150715264. Its totient is φ = 273127547700.

The previous prime is 274139131457. The next prime is 274139131523. The reversal of 274139131481 is 184131931472.

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 274139131481 - 2¹⁰ = 274139130457 is a prime.

It is a super-2 number, since 2×274139131481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274139131411) 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, 505791485 + ... + 505792026.

It is an arithmetic number, because the mean of its divisors is an integer number (68787678816).

Almost surely, 2^274139131481 is an apocalyptic number.

It is an amenable number.

274139131481 is a deficient number, since it is larger than the sum of its proper divisors (1011583783).

274139131481 is a wasteful number, since it uses less digits than its factorization.

274139131481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011583782.

The product of its digits is 145152, while the sum is 44.

The spelling of 274139131481 in words is "two hundred seventy-four billion, one hundred thirty-nine million, one hundred thirty-one thousand, four hundred eighty-one".