149901673 has 4 divisors (see below), whose sum is σ = 149935428. Its totient is φ = 149867920.

The previous prime is 149901611. The next prime is 149901683. The reversal of 149901673 is 376109941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96275344 + 53626329 = 9812^2 + 7323^2 .

It is a cyclic number.

It is not a de Polignac number, because 149901673 - 2¹⁷ = 149770601 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149901683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8986 + ... + 19507.

It is an arithmetic number, because the mean of its divisors is an integer number (37483857).

Almost surely, 2^149901673 is an apocalyptic number.

It is an amenable number.

149901673 is a deficient number, since it is larger than the sum of its proper divisors (33755).

149901673 is an equidigital number, since it uses as much as digits as its factorization.

149901673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33754.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 149901673 is about 12243.4338728969. The cubic root of 149901673 is about 531.2131614040.

The spelling of 149901673 in words is "one hundred forty-nine million, nine hundred one thousand, six hundred seventy-three".