15641151 has 4 divisors (see below), whose sum is σ = 20854872. Its totient is φ = 10427432.

The previous prime is 15641149. The next prime is 15641183. The reversal of 15641151 is 15114651.

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

It is a cyclic number.

It is not a de Polignac number, because 15641151 - 2¹ = 15641149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15641111) 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, 2606856 + ... + 2606861.

It is an arithmetic number, because the mean of its divisors is an integer number (5213718).

Almost surely, 2^15641151 is an apocalyptic number.

15641151 is a deficient number, since it is larger than the sum of its proper divisors (5213721).

15641151 is an equidigital number, since it uses as much as digits as its factorization.

15641151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213720.

The product of its digits is 600, while the sum is 24.

The square root of 15641151 is about 3954.8895054097. The cubic root of 15641151 is about 250.0861090042.

The spelling of 15641151 in words is "fifteen million, six hundred forty-one thousand, one hundred fifty-one".