1056462221 has 8 divisors (see below), whose sum is σ = 1087862784. Its totient is φ = 1025211600.

The previous prime is 1056462203. The next prime is 1056462223. The reversal of 1056462221 is 1222646501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056462221 is a prime.

It is a super-2 number, since 2×1056462221² = 2232224848800505682, 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 (1056462223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23105 + ... + 51446.

It is an arithmetic number, because the mean of its divisors is an integer number (135982848).

Almost surely, 2^1056462221 is an apocalyptic number.

It is an amenable number.

1056462221 is a deficient number, since it is larger than the sum of its proper divisors (31400563).

1056462221 is an equidigital number, since it uses as much as digits as its factorization.

1056462221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74971.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1056462221 is about 32503.2647744807. The cubic root of 1056462221 is about 1018.4772295629.

The spelling of 1056462221 in words is "one billion, fifty-six million, four hundred sixty-two thousand, two hundred twenty-one".