85040451 has 12 divisors (see below), whose sum is σ = 123053112. Its totient is φ = 56593536.

The previous prime is 85040429. The next prime is 85040489. The reversal of 85040451 is 15404058.

It is not a de Polignac number, because 85040451 - 2⁶ = 85040387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85040051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2766 + ... + 13331.

It is an arithmetic number, because the mean of its divisors is an integer number (10254426).

Almost surely, 2^85040451 is an apocalyptic number.

85040451 is a deficient number, since it is larger than the sum of its proper divisors (38012661).

85040451 is a wasteful number, since it uses less digits than its factorization.

85040451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16690 (or 16687 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 85040451 is about 9221.7379598425. The cubic root of 85040451 is about 439.7527036672.

It can be divided in two parts, 85040 and 451, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 85040451 in words is "eighty-five million, forty thousand, four hundred fifty-one".