11561494 has 8 divisors (see below), whose sum is σ = 19819728. Its totient is φ = 4954920.

The previous prime is 11561489. The next prime is 11561507. The reversal of 11561494 is 49416511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412897 + ... + 412924.

It is an arithmetic number, because the mean of its divisors is an integer number (2477466).

Almost surely, 2^11561494 is an apocalyptic number.

11561494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11561494 is a deficient number, since it is larger than the sum of its proper divisors (8258234).

11561494 is an equidigital number, since it uses as much as digits as its factorization.

11561494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825830.

The product of its digits is 4320, while the sum is 31.

The square root of 11561494 is about 3400.2196987842. The cubic root of 11561494 is about 226.1194841599.

The spelling of 11561494 in words is "eleven million, five hundred sixty-one thousand, four hundred ninety-four".