146989741 has 2 divisors, whose sum is σ = 146989742. Its totient is φ = 146989740.

The previous prime is 146989721. The next prime is 146989751. The reversal of 146989741 is 147989641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 53963716 = 9645^2 + 7346^2 .

It is a cyclic number.

It is not a de Polignac number, because 146989741 - 2¹⁵ = 146956973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146989721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73494870 + 73494871.

It is an arithmetic number, because the mean of its divisors is an integer number (73494871).

Almost surely, 2^146989741 is an apocalyptic number.

It is an amenable number.

146989741 is a deficient number, since it is larger than the sum of its proper divisors (1).

146989741 is an equidigital number, since it uses as much as digits as its factorization.

146989741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 146989741 is about 12123.9325715710. The cubic root of 146989741 is about 527.7509311289.

The spelling of 146989741 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, seven hundred forty-one".