15226142 has 4 divisors (see below), whose sum is σ = 22839216. Its totient is φ = 7613070.

The previous prime is 15226117. The next prime is 15226147. The reversal of 15226142 is 24162251.

It is a happy number.

15226142 is digitally balanced in base 2, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (15226147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806534 + ... + 3806537.

It is an arithmetic number, because the mean of its divisors is an integer number (5709804).

Almost surely, 2^15226142 is an apocalyptic number.

15226142 is a deficient number, since it is larger than the sum of its proper divisors (7613074).

15226142 is an equidigital number, since it uses as much as digits as its factorization.

15226142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613073.

The product of its digits is 960, while the sum is 23.

The square root of 15226142 is about 3902.0689383967. The cubic root of 15226142 is about 247.8543955396.

Adding to 15226142 its reverse (24162251), we get a palindrome (39388393).

The spelling of 15226142 in words is "fifteen million, two hundred twenty-six thousand, one hundred forty-two".