149930809673 has 2 divisors, whose sum is σ = 149930809674. Its totient is φ = 149930809672.

The previous prime is 149930809663. The next prime is 149930809703. The reversal of 149930809673 is 376908039941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130456048969 + 19474760704 = 361187^2 + 139552^2 .

It is a cyclic number.

It is not a de Polignac number, because 149930809673 - 2³² = 145635842377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (149930809603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74965404836 + 74965404837.

It is an arithmetic number, because the mean of its divisors is an integer number (74965404837).

Almost surely, 2^149930809673 is an apocalyptic number.

It is an amenable number.

149930809673 is a deficient number, since it is larger than the sum of its proper divisors (1).

149930809673 is an equidigital number, since it uses as much as digits as its factorization.

149930809673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 149930809673 in words is "one hundred forty-nine billion, nine hundred thirty million, eight hundred nine thousand, six hundred seventy-three".