146623261 has 2 divisors, whose sum is σ = 146623262. Its totient is φ = 146623260.

The previous prime is 146623241. The next prime is 146623331. The reversal of 146623261 is 162326641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83722500 + 62900761 = 9150^2 + 7931^2 .

It is a cyclic number.

It is not a de Polignac number, because 146623261 - 2¹¹ = 146621213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146623241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73311630 + 73311631.

It is an arithmetic number, because the mean of its divisors is an integer number (73311631).

Almost surely, 2^146623261 is an apocalyptic number.

It is an amenable number.

146623261 is a deficient number, since it is larger than the sum of its proper divisors (1).

146623261 is an equidigital number, since it uses as much as digits as its factorization.

146623261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 146623261 is about 12108.8092312993. The cubic root of 146623261 is about 527.3119637063.

The spelling of 146623261 in words is "one hundred forty-six million, six hundred twenty-three thousand, two hundred sixty-one".