1515253130 has 16 divisors (see below), whose sum is σ = 2730653640. Its totient is φ = 605390592.

The previous prime is 1515253127. The next prime is 1515253141. The reversal of 1515253130 is 313525151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1498696369 + 16556761 = 38713^2 + 4069^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1515253130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79835 + ... + 96974.

Almost surely, 2^1515253130 is an apocalyptic number.

1515253130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1515253130 is a deficient number, since it is larger than the sum of its proper divisors (1215400510).

1515253130 is a wasteful number, since it uses less digits than its factorization.

1515253130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177673.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1515253130 is about 38926.2524525544. The cubic root of 1515253130 is about 1148.5812699971.

Adding to 1515253130 its reverse (313525151), we get a palindrome (1828778281).

The spelling of 1515253130 in words is "one billion, five hundred fifteen million, two hundred fifty-three thousand, one hundred thirty".