147564231 has 4 divisors (see below), whose sum is σ = 196752312. Its totient is φ = 98376152.

The previous prime is 147564223. The next prime is 147564239. The reversal of 147564231 is 132465741.

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

It is an interprime number because it is at equal distance from previous prime (147564223) and next prime (147564239).

It is a cyclic number.

It is not a de Polignac number, because 147564231 - 2³ = 147564223 is a prime.

It is a super-2 number, since 2×147564231² = 43550404541242722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 147564192 and 147564201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147564239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24594036 + ... + 24594041.

It is an arithmetic number, because the mean of its divisors is an integer number (49188078).

Almost surely, 2^147564231 is an apocalyptic number.

147564231 is a deficient number, since it is larger than the sum of its proper divisors (49188081).

147564231 is an equidigital number, since it uses as much as digits as its factorization.

147564231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49188080.

The product of its digits is 20160, while the sum is 33.

The square root of 147564231 is about 12147.6018620961. The cubic root of 147564231 is about 528.4375856219.

The spelling of 147564231 in words is "one hundred forty-seven million, five hundred sixty-four thousand, two hundred thirty-one".