150449197 has 4 divisors (see below), whose sum is σ = 150484860. Its totient is φ = 150413536.

The previous prime is 150449183. The next prime is 150449227. The reversal of 150449197 is 791944051.

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 55562116 + 94887081 = 7454^2 + 9741^2 .

It is a cyclic number.

It is not a de Polignac number, because 150449197 - 2⁷ = 150449069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150449147) 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, 10498 + ... + 20275.

It is an arithmetic number, because the mean of its divisors is an integer number (37621215).

Almost surely, 2^150449197 is an apocalyptic number.

It is an amenable number.

150449197 is a deficient number, since it is larger than the sum of its proper divisors (35663).

150449197 is an equidigital number, since it uses as much as digits as its factorization.

150449197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35662.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 150449197 is about 12265.7733959176. The cubic root of 150449197 is about 531.8591371926.

The spelling of 150449197 in words is "one hundred fifty million, four hundred forty-nine thousand, one hundred ninety-seven".