1232155001 has 32 divisors (see below), whose sum is σ = 1580463360. Its totient is φ = 932659200.

The previous prime is 1232154947. The next prime is 1232155007. The reversal of 1232155001 is 1005512321.

It is a happy number.

It is not a de Polignac number, because 1232155001 - 2¹⁰ = 1232153977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232155007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873785 + ... + 875193.

It is an arithmetic number, because the mean of its divisors is an integer number (49389480).

Almost surely, 2^1232155001 is an apocalyptic number.

1232155001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232155001 is a deficient number, since it is larger than the sum of its proper divisors (348308359).

1232155001 is a wasteful number, since it uses less digits than its factorization.

1232155001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1232155001 is about 35102.0654805383. The cubic root of 1232155001 is about 1072.0666382171.

Adding to 1232155001 its reverse (1005512321), we get a palindrome (2237667322).

The spelling of 1232155001 in words is "one billion, two hundred thirty-two million, one hundred fifty-five thousand, one".