40915 has 12 divisors (see below), whose sum is σ = 57456. Its totient is φ = 27888.

The previous prime is 40903. The next prime is 40927. The reversal of 40915 is 51904.

It is an interprime number because it is at equal distance from previous prime (40903) and next prime (40927).

It is not a de Polignac number, because 40915 - 2⁵ = 40883 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 40892 and 40901.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 162 + ... + 328.

It is an arithmetic number, because the mean of its divisors is an integer number (4788).

2⁴⁰⁹¹⁵ is an apocalyptic number.

40915 is a deficient number, since it is larger than the sum of its proper divisors (16541).

40915 is a wasteful number, since it uses less digits than its factorization.

40915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 40915 is about 202.2745658752. The cubic root of 40915 is about 34.4583267740.

It can be divided in two parts, 4091 and 5, that added together give a 12-th power (4096 = 2¹²).

The spelling of 40915 in words is "forty thousand, nine hundred fifteen".