1361049542 has 4 divisors (see below), whose sum is σ = 2041574316. Its totient is φ = 680524770.

The previous prime is 1361049539. The next prime is 1361049577. The reversal of 1361049542 is 2459401631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2459401631 = 263 ⋅9351337.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340262384 + ... + 340262387.

It is an arithmetic number, because the mean of its divisors is an integer number (510393579).

Almost surely, 2^1361049542 is an apocalyptic number.

1361049542 is a deficient number, since it is larger than the sum of its proper divisors (680524774).

1361049542 is an equidigital number, since it uses as much as digits as its factorization.

1361049542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680524773.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1361049542 is about 36892.4049365178. The cubic root of 1361049542 is about 1108.2165831657.

The spelling of 1361049542 in words is "one billion, three hundred sixty-one million, forty-nine thousand, five hundred forty-two".