149487863 has 4 divisors (see below), whose sum is σ = 170843280. Its totient is φ = 128132448.

The previous prime is 149487809. The next prime is 149487889. The reversal of 149487863 is 368784941.

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 149487863 - 2⁸ = 149487607 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 (149487893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10677698 + ... + 10677711.

It is an arithmetic number, because the mean of its divisors is an integer number (42710820).

Almost surely, 2^149487863 is an apocalyptic number.

149487863 is a deficient number, since it is larger than the sum of its proper divisors (21355417).

149487863 is an equidigital number, since it uses as much as digits as its factorization.

149487863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21355416.

The product of its digits is 1161216, while the sum is 50.

The square root of 149487863 is about 12226.5229317251. The cubic root of 149487863 is about 530.7238986758.

It can be divided in two parts, 1494878 and 63, that added together give a palindrome (1494941).

The spelling of 149487863 in words is "one hundred forty-nine million, four hundred eighty-seven thousand, eight hundred sixty-three".