149417109 has 16 divisors (see below), whose sum is σ = 221952000. Its totient is φ = 99344448.

The previous prime is 149417101. The next prime is 149417113. The reversal of 149417109 is 901714941.

It is not a de Polignac number, because 149417109 - 2³ = 149417101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149417101) 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, 3117 + ... + 17565.

It is an arithmetic number, because the mean of its divisors is an integer number (13872000).

Almost surely, 2^149417109 is an apocalyptic number.

It is an amenable number.

149417109 is a deficient number, since it is larger than the sum of its proper divisors (72534891).

149417109 is a wasteful number, since it uses less digits than its factorization.

149417109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14841 (or 14835 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 149417109 is about 12223.6291255911. The cubic root of 149417109 is about 530.6401532713.

The spelling of 149417109 in words is "one hundred forty-nine million, four hundred seventeen thousand, one hundred nine".