149986673 has 4 divisors (see below), whose sum is σ = 152528880. Its totient is φ = 147444468.

The previous prime is 149986667. The next prime is 149986679. The reversal of 149986673 is 376689941.

149986673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (149986667) and next prime (149986679).

It is a cyclic number.

It is not a de Polignac number, because 149986673 - 2⁶ = 149986609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149986679) 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, 1271015 + ... + 1271132.

It is an arithmetic number, because the mean of its divisors is an integer number (38132220).

Almost surely, 2^149986673 is an apocalyptic number.

It is an amenable number.

149986673 is a deficient number, since it is larger than the sum of its proper divisors (2542207).

149986673 is an equidigital number, since it uses as much as digits as its factorization.

149986673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542206.

The product of its digits is 1959552, while the sum is 53.

The square root of 149986673 is about 12246.9046293339. The cubic root of 149986673 is about 531.3135485133.

The spelling of 149986673 in words is "one hundred forty-nine million, nine hundred eighty-six thousand, six hundred seventy-three".