149093861 has 8 divisors (see below), whose sum is σ = 170703360. Its totient is φ = 127561968.

The previous prime is 149093837. The next prime is 149093869. The reversal of 149093861 is 168390941.

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 149093861 - 2¹⁸ = 148831717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149093869) 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, 15221 + ... + 23018.

It is an arithmetic number, because the mean of its divisors is an integer number (21337920).

Almost surely, 2^149093861 is an apocalyptic number.

It is an amenable number.

149093861 is a deficient number, since it is larger than the sum of its proper divisors (21609499).

149093861 is an equidigital number, since it uses as much as digits as its factorization.

149093861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38803.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 149093861 is about 12210.3997068073. The cubic root of 149093861 is about 530.2572158403.

The spelling of 149093861 in words is "one hundred forty-nine million, ninety-three thousand, eight hundred sixty-one".