149956563 has 4 divisors (see below), whose sum is σ = 199942088. Its totient is φ = 99971040.

The previous prime is 149956559. The next prime is 149956603. The reversal of 149956563 is 365659941.

It is a happy number.

149956563 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.

It is not a de Polignac number, because 149956563 - 2² = 149956559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149956063) 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, 24992758 + ... + 24992763.

It is an arithmetic number, because the mean of its divisors is an integer number (49985522).

Almost surely, 2^149956563 is an apocalyptic number.

149956563 is a deficient number, since it is larger than the sum of its proper divisors (49985525).

149956563 is an equidigital number, since it uses as much as digits as its factorization.

149956563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49985524.

The product of its digits is 874800, while the sum is 48.

The square root of 149956563 is about 12245.6752774194. The cubic root of 149956563 is about 531.2779921952.

The spelling of 149956563 in words is "one hundred forty-nine million, nine hundred fifty-six thousand, five hundred sixty-three".