1085554974 has 32 divisors (see below), whose sum is σ = 2482430976. Its totient is φ = 310013280.

The previous prime is 1085554973. The next prime is 1085555011. The reversal of 1085554974 is 4794555801.

It is a happy number.

It is a super-2 number, since 2×1085554974² = 2356859203152281352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085554973) 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 15 ways as a sum of consecutive naturals, for example, 111544 + ... + 120884.

It is an arithmetic number, because the mean of its divisors is an integer number (77575968).

Almost surely, 2^1085554974 is an apocalyptic number.

1085554974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1085554974 is an abundant number, since it is smaller than the sum of its proper divisors (1396876002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1085554974 is a wasteful number, since it uses less digits than its factorization.

1085554974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The square root of 1085554974 is about 32947.7612896537. The cubic root of 1085554974 is about 1027.7416110623.

The spelling of 1085554974 in words is "one billion, eighty-five million, five hundred fifty-four thousand, nine hundred seventy-four".