40158201 has 4 divisors (see below), whose sum is σ = 53544272. Its totient is φ = 26772132.

The previous prime is 40158193. The next prime is 40158211. The reversal of 40158201 is 10285104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40158201 - 2³ = 40158193 is a prime.

It is a super-2 number, since 2×40158201² = 3225362215112802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40158211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6693031 + ... + 6693036.

It is an arithmetic number, because the mean of its divisors is an integer number (13386068).

Almost surely, 2^40158201 is an apocalyptic number.

It is an amenable number.

40158201 is a deficient number, since it is larger than the sum of its proper divisors (13386071).

40158201 is a wasteful number, since it uses less digits than its factorization.

40158201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13386070.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 40158201 is about 6337.0498656709. The cubic root of 40158201 is about 342.4454627497.

The spelling of 40158201 in words is "forty million, one hundred fifty-eight thousand, two hundred one".