1274172479 has 4 divisors (see below), whose sum is σ = 1274332176. Its totient is φ = 1274012784.

The previous prime is 1274172463. The next prime is 1274172481. The reversal of 1274172479 is 9742714721.

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 1274172479 - 2⁴ = 1274172463 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 (1274172409) 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, 67214 + ... + 84059.

It is an arithmetic number, because the mean of its divisors is an integer number (318583044).

Almost surely, 2^1274172479 is an apocalyptic number.

1274172479 is a deficient number, since it is larger than the sum of its proper divisors (159697).

1274172479 is an equidigital number, since it uses as much as digits as its factorization.

1274172479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159696.

The product of its digits is 197568, while the sum is 44.

The square root of 1274172479 is about 35695.5526501552. The cubic root of 1274172479 is about 1084.1167974507.

The spelling of 1274172479 in words is "one billion, two hundred seventy-four million, one hundred seventy-two thousand, four hundred seventy-nine".