1145252542 has 16 divisors (see below), whose sum is σ = 1963785600. Its totient is φ = 490698648.

The previous prime is 1145252539. The next prime is 1145252557. The reversal of 1145252542 is 2452525411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67209 + ... + 82507.

It is an arithmetic number, because the mean of its divisors is an integer number (122736600).

Almost surely, 2^1145252542 is an apocalyptic number.

1145252542 is a deficient number, since it is larger than the sum of its proper divisors (818533058).

1145252542 is a wasteful number, since it uses less digits than its factorization.

1145252542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20655.

The product of its digits is 16000, while the sum is 31.

The square root of 1145252542 is about 33841.5800754043. The cubic root of 1145252542 is about 1046.2458655491.

Adding to 1145252542 its reverse (2452525411), we get a palindrome (3597777953).

The spelling of 1145252542 in words is "one billion, one hundred forty-five million, two hundred fifty-two thousand, five hundred forty-two".