146231473 has 2 divisors, whose sum is σ = 146231474. Its totient is φ = 146231472.

The previous prime is 146231413. The next prime is 146231479. The reversal of 146231473 is 374132641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 67519089 = 8872^2 + 8217^2 .

It is a cyclic number.

It is not a de Polignac number, because 146231473 - 2²⁵ = 112677041 is a prime.

It is not a weakly prime, because it can be changed into another prime (146231479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73115736 + 73115737.

It is an arithmetic number, because the mean of its divisors is an integer number (73115737).

Almost surely, 2^146231473 is an apocalyptic number.

It is an amenable number.

146231473 is a deficient number, since it is larger than the sum of its proper divisors (1).

146231473 is an equidigital number, since it uses as much as digits as its factorization.

146231473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 146231473 is about 12092.6206010112. The cubic root of 146231473 is about 526.8418727996.

The spelling of 146231473 in words is "one hundred forty-six million, two hundred thirty-one thousand, four hundred seventy-three".