149950591 has 16 divisors (see below), whose sum is σ = 182856960. Its totient is φ = 120032640.

The previous prime is 149950583. The next prime is 149950607. The reversal of 149950591 is 195059941.

It is not a de Polignac number, because 149950591 - 2³ = 149950583 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 (149950511) 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 15 ways as a sum of consecutive naturals, for example, 10780 + ... + 20398.

It is an arithmetic number, because the mean of its divisors is an integer number (11428560).

Almost surely, 2^149950591 is an apocalyptic number.

149950591 is a deficient number, since it is larger than the sum of its proper divisors (32906369).

149950591 is a wasteful number, since it uses less digits than its factorization.

149950591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774.

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 149950591 is about 12245.4314338042. The cubic root of 149950591 is about 531.2709394099.

The spelling of 149950591 in words is "one hundred forty-nine million, nine hundred fifty thousand, five hundred ninety-one".