149081113 has 4 divisors (see below), whose sum is σ = 149853748. Its totient is φ = 148308480.

The previous prime is 149081081. The next prime is 149081131. The reversal of 149081113 is 311180941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51308569 + 97772544 = 7163^2 + 9888^2 .

It is a cyclic number.

It is not a de Polignac number, because 149081113 - 2⁵ = 149081081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149081213) 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, 386028 + ... + 386413.

It is an arithmetic number, because the mean of its divisors is an integer number (37463437).

Almost surely, 2^149081113 is an apocalyptic number.

It is an amenable number.

149081113 is a deficient number, since it is larger than the sum of its proper divisors (772635).

149081113 is an equidigital number, since it uses as much as digits as its factorization.

149081113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772634.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 149081113 is about 12209.8776816150. The cubic root of 149081113 is about 530.2421025159.

The spelling of 149081113 in words is "one hundred forty-nine million, eighty-one thousand, one hundred thirteen".