15223401 has 24 divisors (see below), whose sum is σ = 23115456. Its totient is φ = 9636000.

The previous prime is 15223399. The next prime is 15223433. The reversal of 15223401 is 10432251.

It is not a de Polignac number, because 15223401 - 2¹ = 15223399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15223501) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 51811 + ... + 52103.

It is an arithmetic number, because the mean of its divisors is an integer number (963144).

Almost surely, 2^15223401 is an apocalyptic number.

It is an amenable number.

15223401 is a deficient number, since it is larger than the sum of its proper divisors (7892055).

15223401 is a wasteful number, since it uses less digits than its factorization.

15223401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 15223401 is about 3901.7176986553. The cubic root of 15223401 is about 247.8395217856.

Adding to 15223401 its reverse (10432251), we get a palindrome (25655652).

The spelling of 15223401 in words is "fifteen million, two hundred twenty-three thousand, four hundred one".