1252201141 has 4 divisors (see below), whose sum is σ = 1252350252. Its totient is φ = 1252052032.

The previous prime is 1252201129. The next prime is 1252201183. The reversal of 1252201141 is 1411022521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 287166916 + 965034225 = 16946^2 + 31065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252201141 - 2²¹ = 1250103989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252291141) 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, 61156 + ... + 79021.

It is an arithmetic number, because the mean of its divisors is an integer number (313087563).

Almost surely, 2^1252201141 is an apocalyptic number.

It is an amenable number.

1252201141 is a deficient number, since it is larger than the sum of its proper divisors (149111).

1252201141 is an equidigital number, since it uses as much as digits as its factorization.

1252201141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149110.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1252201141 is about 35386.4542021379. The cubic root of 1252201141 is about 1077.8492695101.

Adding to 1252201141 its reverse (1411022521), we get a palindrome (2663223662).

The spelling of 1252201141 in words is "one billion, two hundred fifty-two million, two hundred one thousand, one hundred forty-one".