149291115 has 16 divisors (see below), whose sum is σ = 245322528. Its totient is φ = 77469696.

The previous prime is 149291083. The next prime is 149291117. The reversal of 149291115 is 511192941.

It is not a de Polignac number, because 149291115 - 2⁵ = 149291083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149291117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133942 + ... + 135051.

It is an arithmetic number, because the mean of its divisors is an integer number (15332658).

Almost surely, 2^149291115 is an apocalyptic number.

149291115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149291115 is a deficient number, since it is larger than the sum of its proper divisors (96031413).

149291115 is a wasteful number, since it uses less digits than its factorization.

149291115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269038.

The product of its digits is 3240, while the sum is 33.

The square root of 149291115 is about 12218.4743319287. The cubic root of 149291115 is about 530.4909595657.

The spelling of 149291115 in words is "one hundred forty-nine million, two hundred ninety-one thousand, one hundred fifteen".