1252043215 has 8 divisors (see below), whose sum is σ = 1516236480. Its totient is φ = 992444832.

The previous prime is 1252043213. The next prime is 1252043231. The reversal of 1252043215 is 5123402521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252043215 - 2¹ = 1252043213 is a prime.

It is a super-2 number, since 2×1252043215² = 3135224424455072450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1252043215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252043213) 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, 1148119 + ... + 1149208.

It is an arithmetic number, because the mean of its divisors is an integer number (189529560).

Almost surely, 2^1252043215 is an apocalyptic number.

1252043215 is a deficient number, since it is larger than the sum of its proper divisors (264193265).

1252043215 is a wasteful number, since it uses less digits than its factorization.

1252043215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297441.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1252043215 is about 35384.2226846938. Note that the first 3 decimals coincide. The cubic root of 1252043215 is about 1077.8039552831.

Adding to 1252043215 its reverse (5123402521), we get a palindrome (6375445736).

The spelling of 1252043215 in words is "one billion, two hundred fifty-two million, forty-three thousand, two hundred fifteen".