1142585825 has 12 divisors (see below), whose sum is σ = 1419016320. Its totient is φ = 912642960.

The previous prime is 1142585803. The next prime is 1142585833. The reversal of 1142585825 is 5285852411.

It is not a de Polignac number, because 1142585825 - 2¹⁰ = 1142584801 is a prime.

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, 19145 + ... + 51494.

It is an arithmetic number, because the mean of its divisors is an integer number (118251360).

Almost surely, 2^1142585825 is an apocalyptic number.

It is an amenable number.

1142585825 is a deficient number, since it is larger than the sum of its proper divisors (276430495).

1142585825 is an equidigital number, since it uses as much as digits as its factorization.

1142585825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71296 (or 71291 counting only the distinct ones).

The product of its digits is 128000, while the sum is 41.

The square root of 1142585825 is about 33802.1571057233. The cubic root of 1142585825 is about 1045.4331743526.

The spelling of 1142585825 in words is "one billion, one hundred forty-two million, five hundred eighty-five thousand, eight hundred twenty-five".