1055405045 has 8 divisors (see below), whose sum is σ = 1270810296. Its totient is φ = 841441216.

The previous prime is 1055405041. The next prime is 1055405063. The reversal of 1055405045 is 5405045501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 609941809 + 445463236 = 24697^2 + 21106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055405045 - 2² = 1055405041 is a prime.

It is a super-2 number, since 2×1055405045² = 2227759618022904050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1055404999 and 1055405017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055405041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358742 + ... + 361671.

It is an arithmetic number, because the mean of its divisors is an integer number (158851287).

Almost surely, 2^1055405045 is an apocalyptic number.

It is an amenable number.

1055405045 is a deficient number, since it is larger than the sum of its proper divisors (215405251).

1055405045 is an equidigital number, since it uses as much as digits as its factorization.

1055405045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720711.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 1055405045 is about 32486.9980915443. The cubic root of 1055405045 is about 1018.1373944012.

The spelling of 1055405045 in words is "one billion, fifty-five million, four hundred five thousand, forty-five".