1252001377 has 4 divisors (see below), whose sum is σ = 1365819696. Its totient is φ = 1138183060.

The previous prime is 1252001357. The next prime is 1252001381. The reversal of 1252001377 is 7731002521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1252001377 - 2²⁷ = 1117783649 is a prime.

It is a super-2 number, since 2×1252001377² = 3135014896019792258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252001357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56909143 + ... + 56909164.

It is an arithmetic number, because the mean of its divisors is an integer number (341454924).

Almost surely, 2^1252001377 is an apocalyptic number.

It is an amenable number.

1252001377 is a deficient number, since it is larger than the sum of its proper divisors (113818319).

1252001377 is a wasteful number, since it uses less digits than its factorization.

1252001377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113818318.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 1252001377 is about 35383.6314840634. The cubic root of 1252001377 is about 1077.7919499296.

Adding to 1252001377 its reverse (7731002521), we get a palindrome (8983003898).

The spelling of 1252001377 in words is "one billion, two hundred fifty-two million, one thousand, three hundred seventy-seven".