1111640146 has 16 divisors (see below), whose sum is σ = 1710097920. Its totient is φ = 541707040.

The previous prime is 1111640143. The next prime is 1111640147. The reversal of 1111640146 is 6410461111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111640146.

It is not an unprimeable number, because it can be changed into a prime (1111640141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275 + ... + 47206.

It is an arithmetic number, because the mean of its divisors is an integer number (106881120).

Almost surely, 2^1111640146 is an apocalyptic number.

1111640146 is a deficient number, since it is larger than the sum of its proper divisors (598457774).

1111640146 is a wasteful number, since it uses less digits than its factorization.

1111640146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49769.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1111640146 is about 33341.2679123035. The cubic root of 1111640146 is about 1035.9085260092.

The spelling of 1111640146 in words is "one billion, one hundred eleven million, six hundred forty thousand, one hundred forty-six".