85454131 has 24 divisors (see below), whose sum is σ = 104477184. Its totient is φ = 68431440.

The previous prime is 85454123. The next prime is 85454137. The reversal of 85454131 is 13145458.

It is not a de Polignac number, because 85454131 - 2³ = 85454123 is a prime.

It is a super-2 number, since 2×85454131² = 14604817009930322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85454093 and 85454102.

It is not an unprimeable number, because it can be changed into a prime (85454137) 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, 173796 + ... + 174286.

It is an arithmetic number, because the mean of its divisors is an integer number (4353216).

Almost surely, 2^85454131 is an apocalyptic number.

85454131 is a deficient number, since it is larger than the sum of its proper divisors (19023053).

85454131 is a wasteful number, since it uses less digits than its factorization.

85454131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 568 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 85454131 is about 9244.1403602498. The cubic root of 85454131 is about 440.4646108131.

Adding to 85454131 its reverse (13145458), we get a palindrome (98599589).

The spelling of 85454131 in words is "eighty-five million, four hundred fifty-four thousand, one hundred thirty-one".