149138807 has 8 divisors (see below), whose sum is σ = 159912000. Its totient is φ = 138587904.

The previous prime is 149138797. The next prime is 149138833. The reversal of 149138807 is 708831941.

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 149138807 - 2⁴ = 149138791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149138867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54182 + ... + 56867.

It is an arithmetic number, because the mean of its divisors is an integer number (19989000).

Almost surely, 2^149138807 is an apocalyptic number.

149138807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

149138807 is a deficient number, since it is larger than the sum of its proper divisors (10773193).

149138807 is a wasteful number, since it uses less digits than its factorization.

149138807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111145.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 149138807 is about 12212.2400484104. The cubic root of 149138807 is about 530.3104944621.

The spelling of 149138807 in words is "one hundred forty-nine million, one hundred thirty-eight thousand, eight hundred seven".