146999777 has 2 divisors, whose sum is σ = 146999778. Its totient is φ = 146999776.

The previous prime is 146999773. The next prime is 146999819. The reversal of 146999777 is 777999641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87030241 + 59969536 = 9329^2 + 7744^2 .

It is a cyclic number.

It is not a de Polignac number, because 146999777 - 2² = 146999773 is a prime.

It is not a weakly prime, because it can be changed into another prime (146999771) 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, 73499888 + 73499889.

It is an arithmetic number, because the mean of its divisors is an integer number (73499889).

Almost surely, 2^146999777 is an apocalyptic number.

It is an amenable number.

146999777 is a deficient number, since it is larger than the sum of its proper divisors (1).

146999777 is an equidigital number, since it uses as much as digits as its factorization.

146999777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6001128, while the sum is 59.

The square root of 146999777 is about 12124.3464566137. The cubic root of 146999777 is about 527.7629419168.

The spelling of 146999777 in words is "one hundred forty-six million, nine hundred ninety-nine thousand, seven hundred seventy-seven".