149214151 has 4 divisors (see below), whose sum is σ = 157991472. Its totient is φ = 140436832.

The previous prime is 149214139. The next prime is 149214157. The reversal of 149214151 is 151412941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151412941 = 89 ⋅1701269.

It is a cyclic number.

It is not a de Polignac number, because 149214151 - 2¹¹ = 149212103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149214157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4388635 + ... + 4388668.

It is an arithmetic number, because the mean of its divisors is an integer number (39497868).

Almost surely, 2^149214151 is an apocalyptic number.

149214151 is a deficient number, since it is larger than the sum of its proper divisors (8777321).

149214151 is an equidigital number, since it uses as much as digits as its factorization.

149214151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8777320.

The product of its digits is 1440, while the sum is 28.

The square root of 149214151 is about 12215.3244328589. The cubic root of 149214151 is about 530.3997826184.

The spelling of 149214151 in words is "one hundred forty-nine million, two hundred fourteen thousand, one hundred fifty-one".