147632231 has 4 divisors (see below), whose sum is σ = 147993600. Its totient is φ = 147270864.

The previous prime is 147632227. The next prime is 147632237. The reversal of 147632231 is 132236741.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147632231 - 2² = 147632227 is a prime.

It is a super-2 number, since 2×147632231² = 43590551260074722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147632194 and 147632203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147632237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180071 + ... + 180888.

It is an arithmetic number, because the mean of its divisors is an integer number (36998400).

Almost surely, 2^147632231 is an apocalyptic number.

147632231 is a deficient number, since it is larger than the sum of its proper divisors (361369).

147632231 is an equidigital number, since it uses as much as digits as its factorization.

147632231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361368.

The product of its digits is 6048, while the sum is 29.

The square root of 147632231 is about 12150.4004460758. The cubic root of 147632231 is about 528.5187440376.

Adding to 147632231 its reverse (132236741), we get a palindrome (279868972).

The spelling of 147632231 in words is "one hundred forty-seven million, six hundred thirty-two thousand, two hundred thirty-one".