149766073 has 4 divisors (see below), whose sum is σ = 158575860. Its totient is φ = 140956288.

The previous prime is 149766061. The next prime is 149766077. The reversal of 149766073 is 370667941.

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 118091689 + 31674384 = 10867^2 + 5628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149766073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149766077) 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, 4404868 + ... + 4404901.

It is an arithmetic number, because the mean of its divisors is an integer number (39643965).

Almost surely, 2^149766073 is an apocalyptic number.

It is an amenable number.

149766073 is a deficient number, since it is larger than the sum of its proper divisors (8809787).

149766073 is an equidigital number, since it uses as much as digits as its factorization.

149766073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809786.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 149766073 is about 12237.8949578757. The cubic root of 149766073 is about 531.0529358504.

The spelling of 149766073 in words is "one hundred forty-nine million, seven hundred sixty-six thousand, seventy-three".