1252107345 has 16 divisors (see below), whose sum is σ = 2016820800. Its totient is φ = 663307584.

The previous prime is 1252107319. The next prime is 1252107347. The reversal of 1252107345 is 5437012521.

It is not a de Polignac number, because 1252107345 - 2¹¹ = 1252105297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252107347) 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, 277879 + ... + 282348.

It is an arithmetic number, because the mean of its divisors is an integer number (126051300).

Almost surely, 2^1252107345 is an apocalyptic number.

1252107345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252107345 is a deficient number, since it is larger than the sum of its proper divisors (764713455).

1252107345 is a wasteful number, since it uses less digits than its factorization.

1252107345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560384.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1252107345 is about 35385.1288679298. The cubic root of 1252107345 is about 1077.8223567745.

Adding to 1252107345 its reverse (5437012521), we get a palindrome (6689119866).

The spelling of 1252107345 in words is "one billion, two hundred fifty-two million, one hundred seven thousand, three hundred forty-five".