146068921 has 2 divisors, whose sum is σ = 146068922. Its totient is φ = 146068920.

The previous prime is 146068873. The next prime is 146068957. The reversal of 146068921 is 129860641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140090896 + 5978025 = 11836^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 146068921 - 2²¹ = 143971769 is a prime.

It is a super-2 number, since 2×146068921² = 42672259364208482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146068421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73034460 + 73034461.

It is an arithmetic number, because the mean of its divisors is an integer number (73034461).

Almost surely, 2^146068921 is an apocalyptic number.

It is an amenable number.

146068921 is a deficient number, since it is larger than the sum of its proper divisors (1).

146068921 is an equidigital number, since it uses as much as digits as its factorization.

146068921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 146068921 is about 12085.8976083698. The cubic root of 146068921 is about 526.6465866314.

The spelling of 146068921 in words is "one hundred forty-six million, sixty-eight thousand, nine hundred twenty-one".