40211597 has 2 divisors, whose sum is σ = 40211598. Its totient is φ = 40211596.

The previous prime is 40211537. The next prime is 40211599. The reversal of 40211597 is 79511204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28793956 + 11417641 = 5366^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 40211597 - 2¹⁸ = 39949453 is a prime.

Together with 40211599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40211599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105798 + 20105799.

It is an arithmetic number, because the mean of its divisors is an integer number (20105799).

Almost surely, 2^40211597 is an apocalyptic number.

It is an amenable number.

40211597 is a deficient number, since it is larger than the sum of its proper divisors (1).

40211597 is an equidigital number, since it uses as much as digits as its factorization.

40211597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 40211597 is about 6341.2614675631. The cubic root of 40211597 is about 342.5971720660.

The spelling of 40211597 in words is "forty million, two hundred eleven thousand, five hundred ninety-seven".