149799673 has 2 divisors, whose sum is σ = 149799674. Its totient is φ = 149799672.

The previous prime is 149799649. The next prime is 149799809. The reversal of 149799673 is 376997941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124478649 + 25321024 = 11157^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 149799673 - 2⁵ = 149799641 is a prime.

It is not a weakly prime, because it can be changed into another prime (149799373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74899836 + 74899837.

It is an arithmetic number, because the mean of its divisors is an integer number (74899837).

Almost surely, 2^149799673 is an apocalyptic number.

It is an amenable number.

149799673 is a deficient number, since it is larger than the sum of its proper divisors (1).

149799673 is an equidigital number, since it uses as much as digits as its factorization.

149799673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2571912, while the sum is 55.

The square root of 149799673 is about 12239.2676660003. The cubic root of 149799673 is about 531.0926467677.

The spelling of 149799673 in words is "one hundred forty-nine million, seven hundred ninety-nine thousand, six hundred seventy-three".