149866947 has 12 divisors (see below), whose sum is σ = 216606624. Its totient is φ = 99850320.

The previous prime is 149866943. The next prime is 149866963. The reversal of 149866947 is 749668941.

149866947 is a `hidden beast` number, since 1 + 498 + 66 + 94 + 7 = 666.

It is not a de Polignac number, because 149866947 - 2² = 149866943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149866893 and 149866902.

It is not an unprimeable number, because it can be changed into a prime (149866943) 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, 14422 + ... + 22532.

It is an arithmetic number, because the mean of its divisors is an integer number (18050552).

Almost surely, 2^149866947 is an apocalyptic number.

149866947 is a deficient number, since it is larger than the sum of its proper divisors (66739677).

149866947 is a wasteful number, since it uses less digits than its factorization.

149866947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170 (or 10167 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 149866947 is about 12242.0156428588. The cubic root of 149866947 is about 531.1721382175.

The spelling of 149866947 in words is "one hundred forty-nine million, eight hundred sixty-six thousand, nine hundred forty-seven".