1252420043 has 8 divisors (see below), whose sum is σ = 1438832640. Its totient is φ = 1067881320.

The previous prime is 1252420033. The next prime is 1252420061. The reversal of 1252420043 is 3400242521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252420043 - 2⁸ = 1252419787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252420033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467033 + ... + 469706.

It is an arithmetic number, because the mean of its divisors is an integer number (179854080).

Almost surely, 2^1252420043 is an apocalyptic number.

1252420043 is a deficient number, since it is larger than the sum of its proper divisors (186412597).

1252420043 is an equidigital number, since it uses as much as digits as its factorization.

1252420043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936937.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1252420043 is about 35389.5470866752. The cubic root of 1252420043 is about 1077.9120734813.

Adding to 1252420043 its reverse (3400242521), we get a palindrome (4652662564).

The spelling of 1252420043 in words is "one billion, two hundred fifty-two million, four hundred twenty thousand, forty-three".