1232979145 has 16 divisors (see below), whose sum is σ = 1570086288. Its totient is φ = 926300160.

The previous prime is 1232979079. The next prime is 1232979169. The reversal of 1232979145 is 5419792321.

It can be written as a sum of positive squares in 8 ways, for example, as 177768889 + 1055210256 = 13333^2 + 32484^2 .

It is not a de Polignac number, because 1232979145 - 2⁹ = 1232978633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22975 + ... + 54715.

It is an arithmetic number, because the mean of its divisors is an integer number (98130393).

Almost surely, 2^1232979145 is an apocalyptic number.

It is an amenable number.

1232979145 is a deficient number, since it is larger than the sum of its proper divisors (337107143).

1232979145 is a wasteful number, since it uses less digits than its factorization.

1232979145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32220.

The product of its digits is 136080, while the sum is 43.

The square root of 1232979145 is about 35113.8027704206. The cubic root of 1232979145 is about 1072.3056071702.

The spelling of 1232979145 in words is "one billion, two hundred thirty-two million, nine hundred seventy-nine thousand, one hundred forty-five".