149873663 has 4 divisors (see below), whose sum is σ = 149903088. Its totient is φ = 149844240.

The previous prime is 149873627. The next prime is 149873671. The reversal of 149873663 is 366378941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366378941 = 5569 ⋅65789.

It is a cyclic number.

It is not a de Polignac number, because 149873663 - 2⁸ = 149873407 is a prime.

It is a super-2 number, since 2×149873663² = 44924229722075138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149873693) 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, 4883 + ... + 17988.

It is an arithmetic number, because the mean of its divisors is an integer number (37475772).

Almost surely, 2^149873663 is an apocalyptic number.

149873663 is a deficient number, since it is larger than the sum of its proper divisors (29425).

149873663 is an equidigital number, since it uses as much as digits as its factorization.

149873663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29424.

The product of its digits is 653184, while the sum is 47.

The square root of 149873663 is about 12242.2899410200. The cubic root of 149873663 is about 531.1800725861.

The spelling of 149873663 in words is "one hundred forty-nine million, eight hundred seventy-three thousand, six hundred sixty-three".