147055231 has 8 divisors (see below), whose sum is σ = 157716720. Its totient is φ = 136685952.

The previous prime is 147055217. The next prime is 147055243. The reversal of 147055231 is 132550741.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147055231 - 2²³ = 138666623 is a prime.

It is a super-2 number, since 2×147055231² = 43250481928926722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147055231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147055291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72010 + ... + 74023.

It is an arithmetic number, because the mean of its divisors is an integer number (19714590).

Almost surely, 2^147055231 is an apocalyptic number.

147055231 is a deficient number, since it is larger than the sum of its proper divisors (10661489).

147055231 is a wasteful number, since it uses less digits than its factorization.

147055231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146105.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 147055231 is about 12126.6331271297. The cubic root of 147055231 is about 527.8292977698.

The spelling of 147055231 in words is "one hundred forty-seven million, fifty-five thousand, two hundred thirty-one".