154849966 has 24 divisors (see below), whose sum is σ = 246270024. Its totient is φ = 72982560.

The previous prime is 154849951. The next prime is 154849967. The reversal of 154849966 is 669948451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154849967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71256 + ... + 73396.

It is an arithmetic number, because the mean of its divisors is an integer number (10261251).

Almost surely, 2^154849966 is an apocalyptic number.

154849966 is a deficient number, since it is larger than the sum of its proper divisors (91420058).

154849966 is a wasteful number, since it uses less digits than its factorization.

154849966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 2215 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The square root of 154849966 is about 12443.8726287278. The cubic root of 154849966 is about 536.9951600926.

The spelling of 154849966 in words is "one hundred fifty-four million, eight hundred forty-nine thousand, nine hundred sixty-six".