149980071 has 4 divisors (see below), whose sum is σ = 199973432. Its totient is φ = 99986712.

The previous prime is 149980067. The next prime is 149980073. The reversal of 149980071 is 170089941.

It is a happy number.

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

It is not a de Polignac number, because 149980071 - 2² = 149980067 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 (149980073) 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, 24996676 + ... + 24996681.

It is an arithmetic number, because the mean of its divisors is an integer number (49993358).

Almost surely, 2^149980071 is an apocalyptic number.

149980071 is a deficient number, since it is larger than the sum of its proper divisors (49993361).

149980071 is an equidigital number, since it uses as much as digits as its factorization.

149980071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49993360.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 149980071 is about 12246.6350888724. The cubic root of 149980071 is about 531.3057527462.

The spelling of 149980071 in words is "one hundred forty-nine million, nine hundred eighty thousand, seventy-one".