1056146842 has 4 divisors (see below), whose sum is σ = 1584220266. Its totient is φ = 528073420.

The previous prime is 1056146831. The next prime is 1056146849. The reversal of 1056146842 is 2486416501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2486416501 = 1373 ⋅1810937.

It can be written as a sum of positive squares in only one way, i.e., 822026241 + 234120601 = 28671^2 + 15301^2 .

It is a super-2 number, since 2×1056146842² = 2230892303733145928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056146849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264036709 + ... + 264036712.

Almost surely, 2^1056146842 is an apocalyptic number.

1056146842 is a deficient number, since it is larger than the sum of its proper divisors (528073424).

1056146842 is an equidigital number, since it uses as much as digits as its factorization.

1056146842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528073423.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1056146842 is about 32498.4129150948. The cubic root of 1056146842 is about 1018.3758729497.

The spelling of 1056146842 in words is "one billion, fifty-six million, one hundred forty-six thousand, eight hundred forty-two".