1252701165 has 32 divisors (see below), whose sum is σ = 2090382336. Its totient is φ = 639866880.

The previous prime is 1252701161. The next prime is 1252701169. The reversal of 1252701165 is 5611072521.

It is an interprime number because it is at equal distance from previous prime (1252701161) and next prime (1252701169).

It is not a de Polignac number, because 1252701165 - 2² = 1252701161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252701161) 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, 31219 + ... + 58991.

It is an arithmetic number, because the mean of its divisors is an integer number (65324448).

Almost surely, 2^1252701165 is an apocalyptic number.

1252701165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252701165 is a deficient number, since it is larger than the sum of its proper divisors (837681171).

1252701165 is a wasteful number, since it uses less digits than its factorization.

1252701165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27909.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1252701165 is about 35393.5186863358. The cubic root of 1252701165 is about 1077.9927179184.

Adding to 1252701165 its reverse (5611072521), we get a palindrome (6863773686).

The spelling of 1252701165 in words is "one billion, two hundred fifty-two million, seven hundred one thousand, one hundred sixty-five".