411661145 has 24 divisors (see below), whose sum is σ = 578799936. Its totient is φ = 275190048.

The previous prime is 411661141. The next prime is 411661181. The reversal of 411661145 is 541166114.

It is a happy number.

It is not a de Polignac number, because 411661145 - 2² = 411661141 is a prime.

It is a super-2 number, since 2×411661145² = 338929796605422050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (411661141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 786854 + ... + 787376.

It is an arithmetic number, because the mean of its divisors is an integer number (24116664).

Almost surely, 2^411661145 is an apocalyptic number.

It is an amenable number.

411661145 is a deficient number, since it is larger than the sum of its proper divisors (167138791).

411661145 is an frugal number, since it uses more digits than its factorization.

411661145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 578 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 411661145 is about 20289.4343193693. The cubic root of 411661145 is about 743.8978312175.

The spelling of 411661145 in words is "four hundred eleven million, six hundred sixty-one thousand, one hundred forty-five".