1022554013 has 4 divisors (see below), whose sum is σ = 1101212028. Its totient is φ = 943896000.

The previous prime is 1022554009. The next prime is 1022554037. The reversal of 1022554013 is 3104552201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126270169 + 896283844 = 11237^2 + 29938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022554013 - 2² = 1022554009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022554013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022554073) 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, 39328988 + ... + 39329013.

It is an arithmetic number, because the mean of its divisors is an integer number (275303007).

Almost surely, 2^1022554013 is an apocalyptic number.

1022554013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1022554013 is a deficient number, since it is larger than the sum of its proper divisors (78658015).

1022554013 is an equidigital number, since it uses as much as digits as its factorization.

1022554013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78658014.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1022554013 is about 31977.3984714204. The cubic root of 1022554013 is about 1007.4621816696.

The spelling of 1022554013 in words is "one billion, twenty-two million, five hundred fifty-four thousand, thirteen".