1520253342 has 24 divisors (see below), whose sum is σ = 3294668520. Its totient is φ = 506630160.

The previous prime is 1520253337. The next prime is 1520253377. The reversal of 1520253342 is 2433520251.

It is a happy number.

It is a super-2 number, since 2×1520253342² = 4622340447724337928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99792 + ... + 114012.

It is an arithmetic number, because the mean of its divisors is an integer number (137277855).

Almost surely, 2^1520253342 is an apocalyptic number.

1520253342 is an abundant number, since it is smaller than the sum of its proper divisors (1774415178).

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

1520253342 is a wasteful number, since it uses less digits than its factorization.

1520253342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20168 (or 20165 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1520253342 is about 38990.4262864617. The cubic root of 1520253342 is about 1149.8432910598.

Adding to 1520253342 its reverse (2433520251), we get a palindrome (3953773593).

The spelling of 1520253342 in words is "one billion, five hundred twenty million, two hundred fifty-three thousand, three hundred forty-two".