40061071 has 2 divisors, whose sum is σ = 40061072. Its totient is φ = 40061070.

The previous prime is 40061069. The next prime is 40061089. The reversal of 40061071 is 17016004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40061071 - 2¹ = 40061069 is a prime.

Together with 40061069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40061771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20030535 + 20030536.

It is an arithmetic number, because the mean of its divisors is an integer number (20030536).

Almost surely, 2^40061071 is an apocalyptic number.

40061071 is a deficient number, since it is larger than the sum of its proper divisors (1).

40061071 is an equidigital number, since it uses as much as digits as its factorization.

40061071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 40061071 is about 6329.3815653664. The cubic root of 40061071 is about 342.1691507338.

Adding to 40061071 its reverse (17016004), we get a palindrome (57077075).

The spelling of 40061071 in words is "forty million, sixty-one thousand, seventy-one".