149866951 has 16 divisors (see below), whose sum is σ = 171376128. Its totient is φ = 129830400.

The previous prime is 149866943. The next prime is 149866963. The reversal of 149866951 is 159668941.

It is a cyclic number.

It is not a de Polignac number, because 149866951 - 2³ = 149866943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149866895 and 149866904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149866901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101146 + ... + 102616.

It is an arithmetic number, because the mean of its divisors is an integer number (10711008).

Almost surely, 2^149866951 is an apocalyptic number.

149866951 is a deficient number, since it is larger than the sum of its proper divisors (21509177).

149866951 is a wasteful number, since it uses less digits than its factorization.

149866951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962.

The product of its digits is 466560, while the sum is 49.

The square root of 149866951 is about 12242.0158062306. The cubic root of 149866951 is about 531.1721429432.

The spelling of 149866951 in words is "one hundred forty-nine million, eight hundred sixty-six thousand, nine hundred fifty-one".