1361263642 has 8 divisors (see below), whose sum is σ = 2089381536. Its totient is φ = 664803132.

The previous prime is 1361263639. The next prime is 1361263667. The reversal of 1361263642 is 2463621631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1361263642² = 3706077406062208328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1361263598 and 1361263607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7914238 + ... + 7914409.

It is an arithmetic number, because the mean of its divisors is an integer number (261172692).

Almost surely, 2^1361263642 is an apocalyptic number.

1361263642 is a deficient number, since it is larger than the sum of its proper divisors (728117894).

1361263642 is a wasteful number, since it uses less digits than its factorization.

1361263642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828692.

The product of its digits is 31104, while the sum is 34.

The square root of 1361263642 is about 36895.3065036733. The cubic root of 1361263642 is about 1108.2746894832.

The spelling of 1361263642 in words is "one billion, three hundred sixty-one million, two hundred sixty-three thousand, six hundred forty-two".