147240923 has 2 divisors, whose sum is σ = 147240924. Its totient is φ = 147240922.

The previous prime is 147240857. The next prime is 147240941. The reversal of 147240923 is 329042741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147240923 - 2¹² = 147236827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147240923.

It is not a weakly prime, because it can be changed into another prime (147240953) 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 as a sum of consecutive naturals, namely, 73620461 + 73620462.

It is an arithmetic number, because the mean of its divisors is an integer number (73620462).

Almost surely, 2^147240923 is an apocalyptic number.

147240923 is a deficient number, since it is larger than the sum of its proper divisors (1).

147240923 is an equidigital number, since it uses as much as digits as its factorization.

147240923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 147240923 is about 12134.2870824783. The cubic root of 147240923 is about 528.0513740856.

The spelling of 147240923 in words is "one hundred forty-seven million, two hundred forty thousand, nine hundred twenty-three".