149762091 has 4 divisors (see below), whose sum is σ = 199682792. Its totient is φ = 99841392.

The previous prime is 149762089. The next prime is 149762113. The reversal of 149762091 is 190267941.

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

It is not a de Polignac number, because 149762091 - 2¹ = 149762089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149762021) 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, 24960346 + ... + 24960351.

It is an arithmetic number, because the mean of its divisors is an integer number (49920698).

Almost surely, 2^149762091 is an apocalyptic number.

149762091 is a deficient number, since it is larger than the sum of its proper divisors (49920701).

149762091 is an equidigital number, since it uses as much as digits as its factorization.

149762091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49920700.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 149762091 is about 12237.7322654158. The cubic root of 149762091 is about 531.0482292403.

The spelling of 149762091 in words is "one hundred forty-nine million, seven hundred sixty-two thousand, ninety-one".