1055684745 has 40 divisors (see below), whose sum is σ = 1992027840. Its totient is φ = 533394720.

The previous prime is 1055684737. The next prime is 1055684761. The reversal of 1055684745 is 5474865501.

1055684745 is a `hidden beast` number, since 1 + 0 + 5 + 568 + 47 + 45 = 666.

It is not a de Polignac number, because 1055684745 - 2³ = 1055684737 is a prime.

It is a super-2 number, since 2×1055684745² = 2228940561651430050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1055684745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 60901 + ... + 76290.

It is an arithmetic number, because the mean of its divisors is an integer number (49800696).

Almost surely, 2^1055684745 is an apocalyptic number.

1055684745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055684745 is a deficient number, since it is larger than the sum of its proper divisors (936343095).

1055684745 is a wasteful number, since it uses less digits than its factorization.

1055684745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137227 (or 137218 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 1055684745 is about 32491.3026054666. The cubic root of 1055684745 is about 1018.2273276067.

The spelling of 1055684745 in words is "one billion, fifty-five million, six hundred eighty-four thousand, seven hundred forty-five".