1522315242 has 96 divisors (see below), whose sum is σ = 4019293440. Its totient is φ = 425658240.

The previous prime is 1522315231. The next prime is 1522315243. The reversal of 1522315242 is 2425132251.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1522315243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118242 + ... + 130482.

It is an arithmetic number, because the mean of its divisors is an integer number (41867640).

Almost surely, 2^1522315242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1522315242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009646720).

1522315242 is an abundant number, since it is smaller than the sum of its proper divisors (2496978198).

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

1522315242 is a wasteful number, since it uses less digits than its factorization.

1522315242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12313 (or 12300 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1522315242 is about 39016.8584332465. The cubic root of 1522315242 is about 1150.3628954281.

Adding to 1522315242 its reverse (2425132251), we get a palindrome (3947447493).

The spelling of 1522315242 in words is "one billion, five hundred twenty-two million, three hundred fifteen thousand, two hundred forty-two".