1252670001 has 16 divisors (see below), whose sum is σ = 1825295040. Its totient is φ = 757848320.

The previous prime is 1252669987. The next prime is 1252670009. The reversal of 1252670001 is 1000762521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252670001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252670009) 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, 14580 + ... + 52133.

It is an arithmetic number, because the mean of its divisors is an integer number (114080940).

Almost surely, 2^1252670001 is an apocalyptic number.

1252670001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1252670001 is a deficient number, since it is larger than the sum of its proper divisors (572625039).

1252670001 is a wasteful number, since it uses less digits than its factorization.

1252670001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67296.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1252670001 is about 35393.0784335017. The cubic root of 1252670001 is about 1077.9837786107.

The spelling of 1252670001 in words is "one billion, two hundred fifty-two million, six hundred seventy thousand, one".