40156201 has 2 divisors, whose sum is σ = 40156202. Its totient is φ = 40156200.

The previous prime is 40156199. The next prime is 40156219. The reversal of 40156201 is 10265104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37197801 + 2958400 = 6099^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 40156201 - 2¹ = 40156199 is a prime.

It is a super-2 number, since 2×40156201² = 3225040957504802, which contains 22 as substring.

Together with 40156199, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40156801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078100 + 20078101.

It is an arithmetic number, because the mean of its divisors is an integer number (20078101).

Almost surely, 2^40156201 is an apocalyptic number.

It is an amenable number.

40156201 is a deficient number, since it is larger than the sum of its proper divisors (1).

40156201 is an equidigital number, since it uses as much as digits as its factorization.

40156201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40156201 is about 6336.8920615709. The cubic root of 40156201 is about 342.4397777151.

The spelling of 40156201 in words is "forty million, one hundred fifty-six thousand, two hundred one".