149672109 has 8 divisors (see below), whose sum is σ = 208239552. Its totient is φ = 95443040.

The previous prime is 149672093. The next prime is 149672113. The reversal of 149672109 is 901276941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149672109 - 2⁴ = 149672093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149672179) 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, 1084512 + ... + 1084649.

It is an arithmetic number, because the mean of its divisors is an integer number (26029944).

Almost surely, 2^149672109 is an apocalyptic number.

It is an amenable number.

149672109 is a deficient number, since it is larger than the sum of its proper divisors (58567443).

149672109 is a wasteful number, since it uses less digits than its factorization.

149672109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169187.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 149672109 is about 12234.0552965891. The cubic root of 149672109 is about 530.9418508396.

The spelling of 149672109 in words is "one hundred forty-nine million, six hundred seventy-two thousand, one hundred nine".