1232401149 has 40 divisors (see below), whose sum is σ = 2135462208. Its totient is φ = 693696960.

The previous prime is 1232401141. The next prime is 1232401151. The reversal of 1232401149 is 9411042321.

It is a happy number.

It is not a de Polignac number, because 1232401149 - 2³ = 1232401141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232401141) 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 39 ways as a sum of consecutive naturals, for example, 21769 + ... + 54209.

Almost surely, 2^1232401149 is an apocalyptic number.

It is an amenable number.

1232401149 is a deficient number, since it is larger than the sum of its proper divisors (903061059).

1232401149 is an equidigital number, since it uses as much as digits as its factorization.

1232401149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32527 (or 32518 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1232401149 is about 35105.5714808917. The cubic root of 1232401149 is about 1072.1380224959.

The spelling of 1232401149 in words is "one billion, two hundred thirty-two million, four hundred one thousand, one hundred forty-nine".