40951243 has 2 divisors, whose sum is σ = 40951244. Its totient is φ = 40951242.

The previous prime is 40951223. The next prime is 40951291. The reversal of 40951243 is 34215904.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40951243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40951223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20475621 + 20475622.

It is an arithmetic number, because the mean of its divisors is an integer number (20475622).

Almost surely, 2^40951243 is an apocalyptic number.

40951243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40951243 is an equidigital number, since it uses as much as digits as its factorization.

40951243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40951243 is about 6399.3158228048. The cubic root of 40951243 is about 344.6849830493.

The spelling of 40951243 in words is "forty million, nine hundred fifty-one thousand, two hundred forty-three".