1252061231 has 2 divisors, whose sum is σ = 1252061232. Its totient is φ = 1252061230.

The previous prime is 1252061219. The next prime is 1252061269. The reversal of 1252061231 is 1321602521.

It is a weak prime.

It is an emirp because it is prime and its reverse (1321602521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252061231 is a prime.

It is a super-2 number, since 2×1252061231² = 3135314652346470722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1252061197 and 1252061206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252063231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626030615 + 626030616.

It is an arithmetic number, because the mean of its divisors is an integer number (626030616).

Almost surely, 2^1252061231 is an apocalyptic number.

1252061231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252061231 is an equidigital number, since it uses as much as digits as its factorization.

1252061231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1252061231 is about 35384.4772605164. The cubic root of 1252061231 is about 1077.8091248658.

Adding to 1252061231 its reverse (1321602521), we get a palindrome (2573663752).

The spelling of 1252061231 in words is "one billion, two hundred fifty-two million, sixty-one thousand, two hundred thirty-one".