1252195441 has 6 divisors (see below), whose sum is σ = 1456635570. Its totient is φ = 1073310336.

The previous prime is 1252195433. The next prime is 1252195447. The reversal of 1252195441 is 1445912521.

It can be written as a sum of positive squares in only one way, i.e., 744143841 + 508051600 = 27279^2 + 22540^2 .

It is not a de Polignac number, because 1252195441 - 2³ = 1252195433 is a prime.

It is a super-2 number, since 2×1252195441² = 3135986844922368962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252195397 and 1252195406.

It is not an unprimeable number, because it can be changed into a prime (1252195447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12777456 + ... + 12777553.

It is an arithmetic number, because the mean of its divisors is an integer number (242772595).

Almost surely, 2^1252195441 is an apocalyptic number.

It is an amenable number.

1252195441 is a deficient number, since it is larger than the sum of its proper divisors (204440129).

1252195441 is an equidigital number, since it uses as much as digits as its factorization.

1252195441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25555023 (or 25555016 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 1252195441 is about 35386.3736627533. The cubic root of 1252195441 is about 1077.8476340566.

The spelling of 1252195441 in words is "one billion, two hundred fifty-two million, one hundred ninety-five thousand, four hundred forty-one".