1361544142 has 32 divisors (see below), whose sum is σ = 2541657600. Its totient is φ = 533742048.

The previous prime is 1361544139. The next prime is 1361544143. The reversal of 1361544142 is 2414451631.

It is a super-2 number, since 2×1361544142² = 3707604901229032328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361544143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80538 + ... + 95965.

It is an arithmetic number, because the mean of its divisors is an integer number (79426800).

Almost surely, 2^1361544142 is an apocalyptic number.

1361544142 is a deficient number, since it is larger than the sum of its proper divisors (1180113458).

1361544142 is a wasteful number, since it uses less digits than its factorization.

1361544142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176560.

The product of its digits is 11520, while the sum is 31.

The square root of 1361544142 is about 36899.1076043852. The cubic root of 1361544142 is about 1108.3508074104.

Adding to 1361544142 its reverse (2414451631), we get a palindrome (3775995773).

The spelling of 1361544142 in words is "one billion, three hundred sixty-one million, five hundred forty-four thousand, one hundred forty-two".