147144631 has 8 divisors (see below), whose sum is σ = 152774784. Its totient is φ = 141569760.

The previous prime is 147144629. The next prime is 147144649. The reversal of 147144631 is 136441741.

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 147144631 - 2¹ = 147144629 is a prime.

It is a super-2 number, since 2×147144631² = 43303084864252322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147144593 and 147144602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147144601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8356 + ... + 19081.

It is an arithmetic number, because the mean of its divisors is an integer number (19096848).

Almost surely, 2^147144631 is an apocalyptic number.

147144631 is a deficient number, since it is larger than the sum of its proper divisors (5630153).

147144631 is a wasteful number, since it uses less digits than its factorization.

147144631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27641.

The product of its digits is 8064, while the sum is 31.

The square root of 147144631 is about 12130.3186685264. The cubic root of 147144631 is about 527.9362380438.

The spelling of 147144631 in words is "one hundred forty-seven million, one hundred forty-four thousand, six hundred thirty-one".