149943663 has 8 divisors (see below), whose sum is σ = 222138800. Its totient is φ = 99962424.

The previous prime is 149943653. The next prime is 149943671. The reversal of 149943663 is 366349941.

It is not a de Polignac number, because 149943663 - 2⁵ = 149943631 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 (149943613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2776708 + ... + 2776761.

It is an arithmetic number, because the mean of its divisors is an integer number (27767350).

Almost surely, 2^149943663 is an apocalyptic number.

149943663 is a deficient number, since it is larger than the sum of its proper divisors (72195137).

149943663 is an equidigital number, since it uses as much as digits as its factorization.

149943663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553478 (or 5553472 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 149943663 is about 12245.1485495277. The cubic root of 149943663 is about 531.2627573776.

The spelling of 149943663 in words is "one hundred forty-nine million, nine hundred forty-three thousand, six hundred sixty-three".