1085474551 has 4 divisors (see below), whose sum is σ = 1240542352. Its totient is φ = 930406752.

The previous prime is 1085474543. The next prime is 1085474569. The reversal of 1085474551 is 1554745801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1085474551 - 2³ = 1085474543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085474501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77533890 + ... + 77533903.

It is an arithmetic number, because the mean of its divisors is an integer number (310135588).

Almost surely, 2^1085474551 is an apocalyptic number.

1085474551 is a deficient number, since it is larger than the sum of its proper divisors (155067801).

1085474551 is an equidigital number, since it uses as much as digits as its factorization.

1085474551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155067800.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 1085474551 is about 32946.5408047643. The cubic root of 1085474551 is about 1027.7162304638.

The spelling of 1085474551 in words is "one billion, eighty-five million, four hundred seventy-four thousand, five hundred fifty-one".