1082442157 has 4 divisors (see below), whose sum is σ = 1085141916. Its totient is φ = 1079742400.

The previous prime is 1082442113. The next prime is 1082442181. The reversal of 1082442157 is 7512442801.

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 968827876 + 113614281 = 31126^2 + 10659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082442157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082442457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349278 + ... + 1350079.

It is an arithmetic number, because the mean of its divisors is an integer number (271285479).

Almost surely, 2^1082442157 is an apocalyptic number.

It is an amenable number.

1082442157 is a deficient number, since it is larger than the sum of its proper divisors (2699759).

1082442157 is an equidigital number, since it uses as much as digits as its factorization.

1082442157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699758.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 1082442157 is about 32900.4887045770. The cubic root of 1082442157 is about 1026.7583246699.

Adding to 1082442157 its reverse (7512442801), we get a palindrome (8594884958).

The spelling of 1082442157 in words is "one billion, eighty-two million, four hundred forty-two thousand, one hundred fifty-seven".