146994149 has 2 divisors, whose sum is σ = 146994150. Its totient is φ = 146994148.

The previous prime is 146994137. The next prime is 146994151. The reversal of 146994149 is 941499641.

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., 146845924 + 148225 = 12118^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 146994149 - 2²⁰ = 145945573 is a prime.

Together with 146994151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146994349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73497074 + 73497075.

It is an arithmetic number, because the mean of its divisors is an integer number (73497075).

Almost surely, 2^146994149 is an apocalyptic number.

It is an amenable number.

146994149 is a deficient number, since it is larger than the sum of its proper divisors (1).

146994149 is an equidigital number, since it uses as much as digits as its factorization.

146994149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 146994149 is about 12124.1143594079. The cubic root of 146994149 is about 527.7562065602.

The spelling of 146994149 in words is "one hundred forty-six million, nine hundred ninety-four thousand, one hundred forty-nine".