1611163245 has 16 divisors (see below), whose sum is σ = 2582179200. Its totient is φ = 857847744.

The previous prime is 1611163223. The next prime is 1611163249. The reversal of 1611163245 is 5423611161.

It is a happy number.

It is not a de Polignac number, because 1611163245 - 2¹¹ = 1611161197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611163249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80674 + ... + 98643.

It is an arithmetic number, because the mean of its divisors is an integer number (161386200).

Almost surely, 2^1611163245 is an apocalyptic number.

1611163245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1611163245 is a deficient number, since it is larger than the sum of its proper divisors (971015955).

1611163245 is a wasteful number, since it uses less digits than its factorization.

1611163245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179924.

The product of its digits is 4320, while the sum is 30.

The square root of 1611163245 is about 40139.2980132937. The cubic root of 1611163245 is about 1172.3209207576.

The spelling of 1611163245 in words is "one billion, six hundred eleven million, one hundred sixty-three thousand, two hundred forty-five".