40951 has 4 divisors (see below), whose sum is σ = 42304. Its totient is φ = 39600.

The previous prime is 40949. The next prime is 40961. The reversal of 40951 is 15904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40951 - 2¹ = 40949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630 + ... + 691.

It is an arithmetic number, because the mean of its divisors is an integer number (10576).

2⁴⁰⁹⁵¹ is an apocalyptic number.

40951 is the 91-st centered decagonal number.

40951 is a deficient number, since it is larger than the sum of its proper divisors (1353).

40951 is a wasteful number, since it uses less digits than its factorization.

40951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

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

The square root of 40951 is about 202.3635342645. The cubic root of 40951 is about 34.4684301274.

It can be divided in two parts, 4095 and 1, that added together give a 12-th power (4096 = 2¹²).

The spelling of 40951 in words is "forty thousand, nine hundred fifty-one".