147973073 has 2 divisors, whose sum is σ = 147973074. Its totient is φ = 147973072.

The previous prime is 147973039. The next prime is 147973087. The reversal of 147973073 is 370379741.

It is a happy number.

147973073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114425809 + 33547264 = 10697^2 + 5792^2 .

It is a cyclic number.

It is not a de Polignac number, because 147973073 - 2⁶ = 147973009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147973073.

It is not a weakly prime, because it can be changed into another prime (147973093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73986536 + 73986537.

It is an arithmetic number, because the mean of its divisors is an integer number (73986537).

Almost surely, 2^147973073 is an apocalyptic number.

It is an amenable number.

147973073 is a deficient number, since it is larger than the sum of its proper divisors (1).

147973073 is an equidigital number, since it uses as much as digits as its factorization.

147973073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 147973073 is about 12164.4183173714. The cubic root of 147973073 is about 528.9251659728.

The spelling of 147973073 in words is "one hundred forty-seven million, nine hundred seventy-three thousand, seventy-three".