146463973 has 2 divisors, whose sum is σ = 146463974. Its totient is φ = 146463972.

The previous prime is 146463953. The next prime is 146463991. The reversal of 146463973 is 379364641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78269409 + 68194564 = 8847^2 + 8258^2 .

It is an emirp because it is prime and its reverse (379364641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146463973 - 2²¹ = 144366821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146463923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73231986 + 73231987.

It is an arithmetic number, because the mean of its divisors is an integer number (73231987).

Almost surely, 2^146463973 is an apocalyptic number.

It is an amenable number.

146463973 is a deficient number, since it is larger than the sum of its proper divisors (1).

146463973 is an equidigital number, since it uses as much as digits as its factorization.

146463973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The square root of 146463973 is about 12102.2300837490. The cubic root of 146463973 is about 527.1209414852.

The spelling of 146463973 in words is "one hundred forty-six million, four hundred sixty-three thousand, nine hundred seventy-three".