146871247 has 2 divisors, whose sum is σ = 146871248. Its totient is φ = 146871246.

The previous prime is 146871227. The next prime is 146871251. The reversal of 146871247 is 742178641.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146871247 - 2¹¹ = 146869199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146871227) 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, 73435623 + 73435624.

It is an arithmetic number, because the mean of its divisors is an integer number (73435624).

Almost surely, 2^146871247 is an apocalyptic number.

146871247 is a deficient number, since it is larger than the sum of its proper divisors (1).

146871247 is an equidigital number, since it uses as much as digits as its factorization.

146871247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 40.

The square root of 146871247 is about 12119.0448055942. The cubic root of 146871247 is about 527.6090796637.

The spelling of 146871247 in words is "one hundred forty-six million, eight hundred seventy-one thousand, two hundred forty-seven".