15797142 has 12 divisors (see below), whose sum is σ = 34227180. Its totient is φ = 5265708.

The previous prime is 15797101. The next prime is 15797143. The reversal of 15797142 is 24179751.

It is a happy number.

15797142 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 junction number, because it is equal to n+sod(n) for n = 15797097 and 15797106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15797143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 438792 + ... + 438827.

It is an arithmetic number, because the mean of its divisors is an integer number (2852265).

Almost surely, 2^15797142 is an apocalyptic number.

15797142 is an abundant number, since it is smaller than the sum of its proper divisors (18430038).

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

15797142 is a wasteful number, since it uses less digits than its factorization.

15797142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877627 (or 877624 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 15797142 is about 3974.5618626460. The cubic root of 15797142 is about 250.9147395904.

The spelling of 15797142 in words is "fifteen million, seven hundred ninety-seven thousand, one hundred forty-two".