85125442 has 8 divisors (see below), whose sum is σ = 131807232. Its totient is φ = 41189700.

The previous prime is 85125431. The next prime is 85125449. The reversal of 85125442 is 24452158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (85125449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686434 + ... + 686557.

It is an arithmetic number, because the mean of its divisors is an integer number (16475904).

Almost surely, 2^85125442 is an apocalyptic number.

85125442 is a deficient number, since it is larger than the sum of its proper divisors (46681790).

85125442 is a wasteful number, since it uses less digits than its factorization.

85125442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373024.

The product of its digits is 12800, while the sum is 31.

The square root of 85125442 is about 9226.3449968013. The cubic root of 85125442 is about 439.8991538855.

The spelling of 85125442 in words is "eighty-five million, one hundred twenty-five thousand, four hundred forty-two".