149841815 has 16 divisors (see below), whose sum is σ = 183092448. Its totient is φ = 117697536.

The previous prime is 149841787. The next prime is 149841821. The reversal of 149841815 is 518148941.

It is a cyclic number.

It is not a de Polignac number, because 149841815 - 2⁶ = 149841751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144539 + ... + 145571.

It is an arithmetic number, because the mean of its divisors is an integer number (11443278).

Almost surely, 2^149841815 is an apocalyptic number.

149841815 is a deficient number, since it is larger than the sum of its proper divisors (33250633).

149841815 is a wasteful number, since it uses less digits than its factorization.

149841815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538.

The product of its digits is 46080, while the sum is 41.

The square root of 149841815 is about 12240.9891348698. The cubic root of 149841815 is about 531.1424448467.

The spelling of 149841815 in words is "one hundred forty-nine million, eight hundred forty-one thousand, eight hundred fifteen".