1252026615 has 32 divisors (see below), whose sum is σ = 2290844160. Its totient is φ = 571999104.

The previous prime is 1252026613. The next prime is 1252026619. The reversal of 1252026615 is 5166202521.

It is not a de Polignac number, because 1252026615 - 2¹ = 1252026613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252026613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244956 + ... + 250014.

It is an arithmetic number, because the mean of its divisors is an integer number (71588880).

Almost surely, 2^1252026615 is an apocalyptic number.

1252026615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252026615 is a deficient number, since it is larger than the sum of its proper divisors (1038817545).

1252026615 is a wasteful number, since it uses less digits than its factorization.

1252026615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7431.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1252026615 is about 35383.9881160957. The cubic root of 1252026615 is about 1077.7991919691.

The spelling of 1252026615 in words is "one billion, two hundred fifty-two million, twenty-six thousand, six hundred fifteen".