15891452 has 24 divisors (see below), whose sum is σ = 28655424. Its totient is φ = 7707392.

The previous prime is 15891451. The next prime is 15891497. The reversal of 15891452 is 25419851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15891451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25448 + ... + 26064.

It is an arithmetic number, because the mean of its divisors is an integer number (1193976).

Almost surely, 2^15891452 is an apocalyptic number.

It is an amenable number.

15891452 is a deficient number, since it is larger than the sum of its proper divisors (12763972).

15891452 is a wasteful number, since it uses less digits than its factorization.

15891452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 803 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 15891452 is about 3986.4084085803. The cubic root of 15891452 is about 251.4130751592.

The spelling of 15891452 in words is "fifteen million, eight hundred ninety-one thousand, four hundred fifty-two".