146287457 has 2 divisors, whose sum is σ = 146287458. Its totient is φ = 146287456.

The previous prime is 146287451. The next prime is 146287459. The reversal of 146287457 is 754782641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141229456 + 5058001 = 11884^2 + 2249^2 .

It is an emirp because it is prime and its reverse (754782641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146287457 - 2²⁰ = 145238881 is a prime.

Together with 146287459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146287451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73143728 + 73143729.

It is an arithmetic number, because the mean of its divisors is an integer number (73143729).

Almost surely, 2^146287457 is an apocalyptic number.

It is an amenable number.

146287457 is a deficient number, since it is larger than the sum of its proper divisors (1).

146287457 is an equidigital number, since it uses as much as digits as its factorization.

146287457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 44.

The square root of 146287457 is about 12094.9351796527. The cubic root of 146287457 is about 526.9090971612.

The spelling of 146287457 in words is "one hundred forty-six million, two hundred eighty-seven thousand, four hundred fifty-seven".