149666683 has 2 divisors, whose sum is σ = 149666684. Its totient is φ = 149666682.

The previous prime is 149666669. The next prime is 149666689. The reversal of 149666683 is 386666941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149666683 - 2²¹ = 147569531 is a prime.

It is not a weakly prime, because it can be changed into another prime (149666689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74833341 + 74833342.

It is an arithmetic number, because the mean of its divisors is an integer number (74833342).

Almost surely, 2^149666683 is an apocalyptic number.

149666683 is a deficient number, since it is larger than the sum of its proper divisors (1).

149666683 is an equidigital number, since it uses as much as digits as its factorization.

149666683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The square root of 149666683 is about 12233.8335365494. The cubic root of 149666683 is about 530.9354347582.

The spelling of 149666683 in words is "one hundred forty-nine million, six hundred sixty-six thousand, six hundred eighty-three".