1142725775 has 12 divisors (see below), whose sum is σ = 1430740272. Its totient is φ = 905303040.

The previous prime is 1142725709. The next prime is 1142725781. The reversal of 1142725775 is 5775272411.

It is not a de Polignac number, because 1142725775 - 2²⁴ = 1125948559 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219314 + ... + 224463.

It is an arithmetic number, because the mean of its divisors is an integer number (119228356).

Almost surely, 2^1142725775 is an apocalyptic number.

1142725775 is a deficient number, since it is larger than the sum of its proper divisors (288014497).

1142725775 is a wasteful number, since it uses less digits than its factorization.

1142725775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443890 (or 443885 counting only the distinct ones).

The product of its digits is 137200, while the sum is 41.

The square root of 1142725775 is about 33804.2271764938. The cubic root of 1142725775 is about 1045.4758560186.

The spelling of 1142725775 in words is "one billion, one hundred forty-two million, seven hundred twenty-five thousand, seven hundred seventy-five".