1056146893 has 4 divisors (see below), whose sum is σ = 1056211900. Its totient is φ = 1056081888.

The previous prime is 1056146873. The next prime is 1056146899. The reversal of 1056146893 is 3986416501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3986416501 = 41117 ⋅96953.

It can be written as a sum of positive squares in 2 ways, for example, as 318372649 + 737774244 = 17843^2 + 27162^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056146893 - 2⁹ = 1056146381 is a prime.

It is a super-2 number, since 2×1056146893² = 2230892519187106898, 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 (1056146899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15433 + ... + 48481.

It is an arithmetic number, because the mean of its divisors is an integer number (264052975).

Almost surely, 2^1056146893 is an apocalyptic number.

It is an amenable number.

1056146893 is a deficient number, since it is larger than the sum of its proper divisors (65007).

1056146893 is an equidigital number, since it uses as much as digits as its factorization.

1056146893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65006.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1056146893 is about 32498.4136997485. The cubic root of 1056146893 is about 1018.3758893418.

The spelling of 1056146893 in words is "one billion, fifty-six million, one hundred forty-six thousand, eight hundred ninety-three".