1210252542 has 16 divisors (see below), whose sum is σ = 2562887952. Its totient is φ = 379687040.

The previous prime is 1210252541. The next prime is 1210252553. The reversal of 1210252542 is 2452520121.

It is a super-2 number, since 2×1210252542² = 2929422430834923528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210252541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5932509 + ... + 5932712.

It is an arithmetic number, because the mean of its divisors is an integer number (160180497).

Almost surely, 2^1210252542 is an apocalyptic number.

1210252542 is an abundant number, since it is smaller than the sum of its proper divisors (1352635410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210252542 is a wasteful number, since it uses less digits than its factorization.

1210252542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11865243.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1210252542 is about 34788.6841084856. The cubic root of 1210252542 is about 1065.6763664085.

Adding to 1210252542 its reverse (2452520121), we get a palindrome (3662772663).

The spelling of 1210252542 in words is "one billion, two hundred ten million, two hundred fifty-two thousand, five hundred forty-two".