40911145 has 16 divisors (see below), whose sum is σ = 53987328. Its totient is φ = 29514240.

The previous prime is 40911137. The next prime is 40911149. The reversal of 40911145 is 54111904.

It is not a de Polignac number, because 40911145 - 2³ = 40911137 is a prime.

It is a super-2 number, since 2×40911145² = 3347443570422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40911149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4057 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (3374208).

Almost surely, 2^40911145 is an apocalyptic number.

It is an amenable number.

40911145 is a deficient number, since it is larger than the sum of its proper divisors (13076183).

40911145 is a wasteful number, since it uses less digits than its factorization.

40911145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 40911145 is about 6396.1820643256. The cubic root of 40911145 is about 344.5724452201.

The spelling of 40911145 in words is "forty million, nine hundred eleven thousand, one hundred forty-five".