40105149 has 8 divisors (see below), whose sum is σ = 61112640. Its totient is φ = 22917216.

The previous prime is 40105141. The next prime is 40105157. The reversal of 40105149 is 94150104.

40105149 is nontrivially palindromic in base 6.

It is an interprime number because it is at equal distance from previous prime (40105141) and next prime (40105157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40105149 - 2³ = 40105141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40105141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954864 + ... + 954905.

It is an arithmetic number, because the mean of its divisors is an integer number (7639080).

Almost surely, 2^40105149 is an apocalyptic number.

It is an amenable number.

40105149 is a deficient number, since it is larger than the sum of its proper divisors (21007491).

40105149 is a wasteful number, since it uses less digits than its factorization.

40105149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909779.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 40105149 is about 6332.8626228586. The cubic root of 40105149 is about 342.2945975691.

The spelling of 40105149 in words is "forty million, one hundred five thousand, one hundred forty-nine".