1361230491 has 16 divisors (see below), whose sum is σ = 1901493248. Its totient is φ = 865101600.

The previous prime is 1361230483. The next prime is 1361230499. The reversal of 1361230491 is 1940321631.

It is an interprime number because it is at equal distance from previous prime (1361230483) and next prime (1361230499).

It is not a de Polignac number, because 1361230491 - 2³ = 1361230483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361230499) 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, 103000 + ... + 115461.

It is an arithmetic number, because the mean of its divisors is an integer number (118843328).

Almost surely, 2^1361230491 is an apocalyptic number.

1361230491 is a deficient number, since it is larger than the sum of its proper divisors (540262757).

1361230491 is a wasteful number, since it uses less digits than its factorization.

1361230491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218562.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1361230491 is about 36894.8572432528. The cubic root of 1361230491 is about 1108.2656927659.

The spelling of 1361230491 in words is "one billion, three hundred sixty-one million, two hundred thirty thousand, four hundred ninety-one".