149428203 has 4 divisors (see below), whose sum is σ = 199237608. Its totient is φ = 99618800.

The previous prime is 149428193. The next prime is 149428207. The reversal of 149428203 is 302824941.

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

It is a cyclic number.

It is not a de Polignac number, because 149428203 - 2¹⁴ = 149411819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149428207) 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, 24904698 + ... + 24904703.

It is an arithmetic number, because the mean of its divisors is an integer number (49809402).

Almost surely, 2^149428203 is an apocalyptic number.

149428203 is a deficient number, since it is larger than the sum of its proper divisors (49809405).

149428203 is an equidigital number, since it uses as much as digits as its factorization.

149428203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49809404.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 149428203 is about 12224.0829103864. The cubic root of 149428203 is about 530.6532860292.

The spelling of 149428203 in words is "one hundred forty-nine million, four hundred twenty-eight thousand, two hundred three".