149941151 has 4 divisors (see below), whose sum is σ = 150343512. Its totient is φ = 149538792.

The previous prime is 149941097. The next prime is 149941171. The reversal of 149941151 is 151149941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149941151 - 2⁶ = 149941087 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 (149941171) 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, 200621 + ... + 201366.

It is an arithmetic number, because the mean of its divisors is an integer number (37585878).

Almost surely, 2^149941151 is an apocalyptic number.

149941151 is a deficient number, since it is larger than the sum of its proper divisors (402361).

149941151 is an equidigital number, since it uses as much as digits as its factorization.

149941151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402360.

The product of its digits is 6480, while the sum is 35.

The square root of 149941151 is about 12245.0459778639. The cubic root of 149941151 is about 531.2597906200.

The spelling of 149941151 in words is "one hundred forty-nine million, nine hundred forty-one thousand, one hundred fifty-one".