11498531 has 4 divisors (see below), whose sum is σ = 12543864. Its totient is φ = 10453200.

The previous prime is 11498507. The next prime is 11498537. The reversal of 11498531 is 13589411.

11498531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11498531 is a prime.

It is a super-2 number, since 2×11498531² = 264432430315922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11498537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522650 + ... + 522671.

It is an arithmetic number, because the mean of its divisors is an integer number (3135966).

Almost surely, 2^11498531 is an apocalyptic number.

11498531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11498531 is a deficient number, since it is larger than the sum of its proper divisors (1045333).

11498531 is a wasteful number, since it uses less digits than its factorization.

11498531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045332.

The product of its digits is 4320, while the sum is 32.

The square root of 11498531 is about 3390.9483924118. The cubic root of 11498531 is about 225.7082603629.

The spelling of 11498531 in words is "eleven million, four hundred ninety-eight thousand, five hundred thirty-one".