40951901 has 2 divisors, whose sum is σ = 40951902. Its totient is φ = 40951900.

The previous prime is 40951879. The next prime is 40951909. The reversal of 40951901 is 10915904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39075001 + 1876900 = 6251^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 40951901 - 2¹⁸ = 40689757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40951909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20475950 + 20475951.

It is an arithmetic number, because the mean of its divisors is an integer number (20475951).

Almost surely, 2^40951901 is an apocalyptic number.

It is an amenable number.

40951901 is a deficient number, since it is larger than the sum of its proper divisors (1).

40951901 is an equidigital number, since it uses as much as digits as its factorization.

40951901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 40951901 is about 6399.3672343443. The cubic root of 40951901 is about 344.6868291594.

The spelling of 40951901 in words is "forty million, nine hundred fifty-one thousand, nine hundred one".