146021287 has 2 divisors, whose sum is σ = 146021288. Its totient is φ = 146021286.

The previous prime is 146021269. The next prime is 146021297. The reversal of 146021287 is 782120641.

146021287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146021287 - 2⁷ = 146021159 is a prime.

It is equal to p_8232943 and since 146021287 and 8232943 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146021237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73010643 + 73010644.

It is an arithmetic number, because the mean of its divisors is an integer number (73010644).

Almost surely, 2^146021287 is an apocalyptic number.

146021287 is a deficient number, since it is larger than the sum of its proper divisors (1).

146021287 is an equidigital number, since it uses as much as digits as its factorization.

146021287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 146021287 is about 12083.9268038167. The cubic root of 146021287 is about 526.5893328118.

The spelling of 146021287 in words is "one hundred forty-six million, twenty-one thousand, two hundred eighty-seven".