1361249546 has 4 divisors (see below), whose sum is σ = 2041874322. Its totient is φ = 680624772.

The previous prime is 1361249521. The next prime is 1361249611. The reversal of 1361249546 is 6459421631.

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

It can be written as a sum of positive squares in only one way, i.e., 1227731521 + 133518025 = 35039^2 + 11555^2 .

It is a super-2 number, since 2×1361249546² = 3706000652970412232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340312385 + ... + 340312388.

Almost surely, 2^1361249546 is an apocalyptic number.

1361249546 is a deficient number, since it is larger than the sum of its proper divisors (680624776).

1361249546 is an equidigital number, since it uses as much as digits as its factorization.

1361249546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680624775.

The product of its digits is 155520, while the sum is 41.

The square root of 1361249546 is about 36895.1154761711. The cubic root of 1361249546 is about 1108.2708640440.

The spelling of 1361249546 in words is "one billion, three hundred sixty-one million, two hundred forty-nine thousand, five hundred forty-six".