1230432551 has 6 divisors (see below), whose sum is σ = 1251644352. Its totient is φ = 1209574340.

The previous prime is 1230432529. The next prime is 1230432569. The reversal of 1230432551 is 1552340321.

It is a happy number.

It is not a de Polignac number, because 1230432551 - 2²⁶ = 1163323687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230432551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230432251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173255 + ... + 180216.

It is an arithmetic number, because the mean of its divisors is an integer number (208607392).

Almost surely, 2^1230432551 is an apocalyptic number.

1230432551 is a deficient number, since it is larger than the sum of its proper divisors (21211801).

1230432551 is an frugal number, since it uses more digits than its factorization.

1230432551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353589 (or 353530 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1230432551 is about 35077.5220190937. The cubic root of 1230432551 is about 1071.5668519878.

Adding to 1230432551 its reverse (1552340321), we get a palindrome (2782772872).

The spelling of 1230432551 in words is "one billion, two hundred thirty million, four hundred thirty-two thousand, five hundred fifty-one".