147881133 has 10 divisors (see below), whose sum is σ = 220908974. Its totient is φ = 98587368.

The previous prime is 147881131. The next prime is 147881197. The reversal of 147881133 is 331188741.

147881133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 140493609 + 7387524 = 11853^2 + 2718^2 .

It is not a de Polignac number, because 147881133 - 2¹ = 147881131 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 (147881131) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 912766 + ... + 912927.

Almost surely, 2^147881133 is an apocalyptic number.

It is an amenable number.

147881133 is a deficient number, since it is larger than the sum of its proper divisors (73027841).

147881133 is an equidigital number, since it uses as much as digits as its factorization.

147881133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825705 (or 1825696 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 147881133 is about 12160.6386756617. The cubic root of 147881133 is about 528.8155977163.

The spelling of 147881133 in words is "one hundred forty-seven million, eight hundred eighty-one thousand, one hundred thirty-three".