149509093 has 4 divisors (see below), whose sum is σ = 151740640. Its totient is φ = 147277548.

The previous prime is 149509091. The next prime is 149509097. The reversal of 149509093 is 390905941.

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 a cyclic number.

It is not a de Polignac number, because 149509093 - 2¹ = 149509091 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 (149509091) 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, 1115673 + ... + 1115806.

It is an arithmetic number, because the mean of its divisors is an integer number (37935160).

Almost surely, 2^149509093 is an apocalyptic number.

It is an amenable number.

149509093 is a deficient number, since it is larger than the sum of its proper divisors (2231547).

149509093 is an equidigital number, since it uses as much as digits as its factorization.

149509093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231546.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 149509093 is about 12227.3910954054. The cubic root of 149509093 is about 530.7490216407.

The spelling of 149509093 in words is "one hundred forty-nine million, five hundred nine thousand, ninety-three".