147144775 has 12 divisors (see below), whose sum is σ = 193192992. Its totient is φ = 110791040.

The previous prime is 147144773. The next prime is 147144787. The reversal of 147144775 is 577441741.

It is not a de Polignac number, because 147144775 - 2¹ = 147144773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147144773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172687 + ... + 173536.

It is an arithmetic number, because the mean of its divisors is an integer number (16099416).

Almost surely, 2^147144775 is an apocalyptic number.

147144775 is a deficient number, since it is larger than the sum of its proper divisors (46048217).

147144775 is a wasteful number, since it uses less digits than its factorization.

147144775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346250 (or 346245 counting only the distinct ones).

The product of its digits is 109760, while the sum is 40.

The square root of 147144775 is about 12130.3246040656. The cubic root of 147144775 is about 527.9364102616.

The spelling of 147144775 in words is "one hundred forty-seven million, one hundred forty-four thousand, seven hundred seventy-five".