11491534 has 8 divisors (see below), whose sum is σ = 17703288. Its totient is φ = 5590440.

The previous prime is 11491531. The next prime is 11491573. The reversal of 11491534 is 43519411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77572 + ... + 77719.

It is an arithmetic number, because the mean of its divisors is an integer number (2212911).

Almost surely, 2^11491534 is an apocalyptic number.

11491534 is a deficient number, since it is larger than the sum of its proper divisors (6211754).

11491534 is a wasteful number, since it uses less digits than its factorization.

11491534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155330.

The product of its digits is 2160, while the sum is 28.

The square root of 11491534 is about 3389.9165181461. The cubic root of 11491534 is about 225.6624689731.

The spelling of 11491534 in words is "eleven million, four hundred ninety-one thousand, five hundred thirty-four".