146281897 has 2 divisors, whose sum is σ = 146281898. Its totient is φ = 146281896.

The previous prime is 146281859. The next prime is 146281903. The reversal of 146281897 is 798182641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133148521 + 13133376 = 11539^2 + 3624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146281897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146281397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73140948 + 73140949.

It is an arithmetic number, because the mean of its divisors is an integer number (73140949).

Almost surely, 2^146281897 is an apocalyptic number.

It is an amenable number.

146281897 is a deficient number, since it is larger than the sum of its proper divisors (1).

146281897 is an equidigital number, since it uses as much as digits as its factorization.

146281897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 146281897 is about 12094.7053291926. The cubic root of 146281897 is about 526.9024216021.

The spelling of 146281897 in words is "one hundred forty-six million, two hundred eighty-one thousand, eight hundred ninety-seven".