149291927 has 4 divisors (see below), whose sum is σ = 149322216. Its totient is φ = 149261640.

The previous prime is 149291921. The next prime is 149291957. The reversal of 149291927 is 729192941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 729192941 = 97 ⋅7517453.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149291927 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 (149291921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5849 + ... + 18242.

It is an arithmetic number, because the mean of its divisors is an integer number (37330554).

Almost surely, 2^149291927 is an apocalyptic number.

149291927 is a deficient number, since it is larger than the sum of its proper divisors (30289).

149291927 is an equidigital number, since it uses as much as digits as its factorization.

149291927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30288.

The product of its digits is 81648, while the sum is 44.

The square root of 149291927 is about 12218.5075602546. The cubic root of 149291927 is about 530.4919213507.

The spelling of 149291927 in words is "one hundred forty-nine million, two hundred ninety-one thousand, nine hundred twenty-seven".