11801542 has 4 divisors (see below), whose sum is σ = 17702316. Its totient is φ = 5900770.

The previous prime is 11801513. The next prime is 11801551. The reversal of 11801542 is 24510811.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2950384 + ... + 2950387.

It is an arithmetic number, because the mean of its divisors is an integer number (4425579).

Almost surely, 2^11801542 is an apocalyptic number.

11801542 is a deficient number, since it is larger than the sum of its proper divisors (5900774).

11801542 is an equidigital number, since it uses as much as digits as its factorization.

11801542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900773.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 11801542 is about 3435.3372469090. The cubic root of 11801542 is about 227.6737279456.

The spelling of 11801542 in words is "eleven million, eight hundred one thousand, five hundred forty-two".