149505141 has 4 divisors (see below), whose sum is σ = 199340192. Its totient is φ = 99670092.

The previous prime is 149505133. The next prime is 149505143. The reversal of 149505141 is 141505941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 149505141 - 2³ = 149505133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149505099 and 149505108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149505143) 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, 24917521 + ... + 24917526.

It is an arithmetic number, because the mean of its divisors is an integer number (49835048).

Almost surely, 2^149505141 is an apocalyptic number.

It is an amenable number.

149505141 is a deficient number, since it is larger than the sum of its proper divisors (49835051).

149505141 is an equidigital number, since it uses as much as digits as its factorization.

149505141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49835050.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 149505141 is about 12227.2294899540. The cubic root of 149505141 is about 530.7443451390.

The spelling of 149505141 in words is "one hundred forty-nine million, five hundred five thousand, one hundred forty-one".