147031889 has 2 divisors, whose sum is σ = 147031890. Its totient is φ = 147031888.

The previous prime is 147031883. The next prime is 147031897. The reversal of 147031889 is 988130741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139051264 + 7980625 = 11792^2 + 2825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147031889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147031883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73515944 + 73515945.

It is an arithmetic number, because the mean of its divisors is an integer number (73515945).

Almost surely, 2^147031889 is an apocalyptic number.

It is an amenable number.

147031889 is a deficient number, since it is larger than the sum of its proper divisors (1).

147031889 is an equidigital number, since it uses as much as digits as its factorization.

147031889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 147031889 is about 12125.6706618644. The cubic root of 147031889 is about 527.8013689358.

The spelling of 147031889 in words is "one hundred forty-seven million, thirty-one thousand, eight hundred eighty-nine".