146089477 has 2 divisors, whose sum is σ = 146089478. Its totient is φ = 146089476.

The previous prime is 146089459. The next prime is 146089543. The reversal of 146089477 is 774980641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79405921 + 66683556 = 8911^2 + 8166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146089477 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 (146089457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73044738 + 73044739.

It is an arithmetic number, because the mean of its divisors is an integer number (73044739).

Almost surely, 2^146089477 is an apocalyptic number.

It is an amenable number.

146089477 is a deficient number, since it is larger than the sum of its proper divisors (1).

146089477 is an equidigital number, since it uses as much as digits as its factorization.

146089477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 146089477 is about 12086.7479910851. The cubic root of 146089477 is about 526.6712901284.

The spelling of 146089477 in words is "one hundred forty-six million, eighty-nine thousand, four hundred seventy-seven".