1015213250 has 16 divisors (see below), whose sum is σ = 1900479672. Its totient is φ = 406085200.

The previous prime is 1015213229. The next prime is 1015213267. The reversal of 1015213250 is 523125101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 539493529 + 475719721 = 23227^2 + 21811^2 .

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, 2030177 + ... + 2030676.

Almost surely, 2^1015213250 is an apocalyptic number.

1015213250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1015213250 is a deficient number, since it is larger than the sum of its proper divisors (885266422).

1015213250 is an equidigital number, since it uses as much as digits as its factorization.

1015213250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060870 (or 4060860 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1015213250 is about 31862.4112395782. The cubic root of 1015213250 is about 1005.0455826128.

Adding to 1015213250 its reverse (523125101), we get a palindrome (1538338351).

The spelling of 1015213250 in words is "one billion, fifteen million, two hundred thirteen thousand, two hundred fifty".