146950681 has 2 divisors, whose sum is σ = 146950682. Its totient is φ = 146950680.

The previous prime is 146950667. The next prime is 146950709. The reversal of 146950681 is 186059641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137241225 + 9709456 = 11715^2 + 3116^2 .

It is an emirp because it is prime and its reverse (186059641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146950681 - 2⁷ = 146950553 is a prime.

It is a super-2 number, since 2×146950681² = 43189005292727522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146950621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73475340 + 73475341.

It is an arithmetic number, because the mean of its divisors is an integer number (73475341).

Almost surely, 2^146950681 is an apocalyptic number.

It is an amenable number.

146950681 is a deficient number, since it is larger than the sum of its proper divisors (1).

146950681 is an equidigital number, since it uses as much as digits as its factorization.

146950681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 146950681 is about 12122.3216010796. The cubic root of 146950681 is about 527.7041800712.

The spelling of 146950681 in words is "one hundred forty-six million, nine hundred fifty thousand, six hundred eighty-one".