40351601 has 2 divisors, whose sum is σ = 40351602. Its totient is φ = 40351600.

The previous prime is 40351559. The next prime is 40351609. The reversal of 40351601 is 10615304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33466225 + 6885376 = 5785^2 + 2624^2 .

It is a cyclic number.

It is not a de Polignac number, because 40351601 - 2¹⁰ = 40350577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40351609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20175800 + 20175801.

It is an arithmetic number, because the mean of its divisors is an integer number (20175801).

Almost surely, 2^40351601 is an apocalyptic number.

It is an amenable number.

40351601 is a deficient number, since it is larger than the sum of its proper divisors (1).

40351601 is an equidigital number, since it uses as much as digits as its factorization.

40351601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 40351601 is about 6352.2910040394. The cubic root of 40351601 is about 342.9943163329.

Adding to 40351601 its reverse (10615304), we get a palindrome (50966905).

The spelling of 40351601 in words is "forty million, three hundred fifty-one thousand, six hundred one".