1252380111 has 16 divisors (see below), whose sum is σ = 1697480064. Its totient is φ = 821189984.

The previous prime is 1252380097. The next prime is 1252380113. The reversal of 1252380111 is 1110832521.

It is a cyclic number.

It is not a de Polignac number, because 1252380111 - 2¹⁴ = 1252363727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252380113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45445 + ... + 67601.

It is an arithmetic number, because the mean of its divisors is an integer number (106092504).

Almost surely, 2^1252380111 is an apocalyptic number.

1252380111 is a deficient number, since it is larger than the sum of its proper divisors (445099953).

1252380111 is a wasteful number, since it uses less digits than its factorization.

1252380111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22470.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 1252380111 is about 35388.9829042882. The cubic root of 1252380111 is about 1077.9006173561.

The spelling of 1252380111 in words is "one billion, two hundred fifty-two million, three hundred eighty thousand, one hundred eleven".