1064774431 has 4 divisors (see below), whose sum is σ = 1216885072. Its totient is φ = 912663792.

The previous prime is 1064774429. The next prime is 1064774437. The reversal of 1064774431 is 1344774601.

It is a happy number.

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 1064774431 - 2¹ = 1064774429 is a prime.

It is a super-2 number, since 2×1064774431² = 2267489177822747522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064774437) 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, 76055310 + ... + 76055323.

It is an arithmetic number, because the mean of its divisors is an integer number (304221268).

Almost surely, 2^1064774431 is an apocalyptic number.

1064774431 is a deficient number, since it is larger than the sum of its proper divisors (152110641).

1064774431 is an equidigital number, since it uses as much as digits as its factorization.

1064774431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152110640.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 1064774431 is about 32630.8815541352. The cubic root of 1064774431 is about 1021.1413697216.

It can be divided in two parts, 10647 and 74431, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 1064774431 in words is "one billion, sixty-four million, seven hundred seventy-four thousand, four hundred thirty-one".