15224142 has 16 divisors (see below), whose sum is σ = 30903552. Its totient is φ = 4998840.

The previous prime is 15224123. The next prime is 15224147. The reversal of 15224142 is 24142251.

15224142 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15224147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18534 + ... + 19337.

It is an arithmetic number, because the mean of its divisors is an integer number (1931472).

Almost surely, 2^15224142 is an apocalyptic number.

15224142 is an abundant number, since it is smaller than the sum of its proper divisors (15679410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15224142 is a wasteful number, since it uses less digits than its factorization.

15224142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37943.

The product of its digits is 640, while the sum is 21.

The square root of 15224142 is about 3901.8126556768. The cubic root of 15224142 is about 247.8435429218.

Adding to 15224142 its reverse (24142251), we get a palindrome (39366393).

The spelling of 15224142 in words is "fifteen million, two hundred twenty-four thousand, one hundred forty-two".