1074062721 has 4 divisors (see below), whose sum is σ = 1432083632. Its totient is φ = 716041812.

The previous prime is 1074062713. The next prime is 1074062741. The reversal of 1074062721 is 1272604701.

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 not a de Polignac number, because 1074062721 - 2³ = 1074062713 is a prime.

It is a super-2 number, since 2×1074062721² = 2307221457283847682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1074062711) 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, 179010451 + ... + 179010456.

It is an arithmetic number, because the mean of its divisors is an integer number (358020908).

Almost surely, 2^1074062721 is an apocalyptic number.

It is an amenable number.

1074062721 is a deficient number, since it is larger than the sum of its proper divisors (358020911).

1074062721 is an equidigital number, since it uses as much as digits as its factorization.

1074062721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358020910.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 1074062721 is about 32772.8961338482. The cubic root of 1074062721 is about 1024.1020002485.

The spelling of 1074062721 in words is "one billion, seventy-four million, sixty-two thousand, seven hundred twenty-one".