1252443031 has 16 divisors (see below), whose sum is σ = 1471776768. Its totient is φ = 1043409600.

The previous prime is 1252443001. The next prime is 1252443037. The reversal of 1252443031 is 1303442521.

It is a cyclic number.

It is not a de Polignac number, because 1252443031 - 2⁵ = 1252442999 is a prime.

It is a super-2 number, since 2×1252443031² = 3137227091800933922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1252442987 and 1252443005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252443037) 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, 69726 + ... + 85828.

It is an arithmetic number, because the mean of its divisors is an integer number (91986048).

Almost surely, 2^1252443031 is an apocalyptic number.

1252443031 is a deficient number, since it is larger than the sum of its proper divisors (219333737).

1252443031 is a wasteful number, since it uses less digits than its factorization.

1252443031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16422.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1252443031 is about 35389.8718703530. The cubic root of 1252443031 is about 1077.9186684176.

Adding to 1252443031 its reverse (1303442521), we get a palindrome (2555885552).

It can be divided in two parts, 12524 and 43031, that added together give a palindrome (55555).

The spelling of 1252443031 in words is "one billion, two hundred fifty-two million, four hundred forty-three thousand, thirty-one".