1285158325 has 24 divisors (see below), whose sum is σ = 1780886016. Its totient is φ = 911856000.

The previous prime is 1285158323. The next prime is 1285158337. The reversal of 1285158325 is 5238515821.

It is not a de Polignac number, because 1285158325 - 2¹ = 1285158323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285158323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45717 + ... + 68266.

It is an arithmetic number, because the mean of its divisors is an integer number (74203584).

Almost surely, 2^1285158325 is an apocalyptic number.

It is an amenable number.

1285158325 is a deficient number, since it is larger than the sum of its proper divisors (495727691).

1285158325 is a wasteful number, since it uses less digits than its factorization.

1285158325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114045 (or 114040 counting only the distinct ones).

The product of its digits is 96000, while the sum is 40.

The square root of 1285158325 is about 35849.1049400121. The cubic root of 1285158325 is about 1087.2236176144.

The spelling of 1285158325 in words is "one billion, two hundred eighty-five million, one hundred fifty-eight thousand, three hundred twenty-five".