1515253242 has 16 divisors (see below), whose sum is σ = 3031011360. Its totient is φ = 505000272.

The previous prime is 1515253241. The next prime is 1515253253. The reversal of 1515253242 is 2423525151.

It is not an unprimeable number, because it can be changed into a prime (1515253241) 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, 26109 + ... + 60927.

It is an arithmetic number, because the mean of its divisors is an integer number (189438210).

Almost surely, 2^1515253242 is an apocalyptic number.

1515253242 is an abundant number, since it is smaller than the sum of its proper divisors (1515758118).

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

1515253242 is a wasteful number, since it uses less digits than its factorization.

1515253242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42077.

The product of its digits is 12000, while the sum is 30.

The square root of 1515253242 is about 38926.2538911722. The cubic root of 1515253242 is about 1148.5812982962.

Adding to 1515253242 its reverse (2423525151), we get a palindrome (3938778393).

The spelling of 1515253242 in words is "one billion, five hundred fifteen million, two hundred fifty-three thousand, two hundred forty-two".