40151801 has 4 divisors (see below), whose sum is σ = 40832400. Its totient is φ = 39471204.

The previous prime is 40151791. The next prime is 40151861. The reversal of 40151801 is 10815104.

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 a cyclic number.

It is not a de Polignac number, because 40151801 - 2⁶ = 40151737 is a prime.

It is a super-2 number, since 2×40151801² = 3224334247087202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40151861) 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, 340211 + ... + 340328.

It is an arithmetic number, because the mean of its divisors is an integer number (10208100).

Almost surely, 2^40151801 is an apocalyptic number.

It is an amenable number.

40151801 is a deficient number, since it is larger than the sum of its proper divisors (680599).

40151801 is an equidigital number, since it uses as much as digits as its factorization.

40151801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680598.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 40151801 is about 6336.5448787174. The cubic root of 40151801 is about 342.4272699743.

Adding to 40151801 its reverse (10815104), we get a palindrome (50966905).

The spelling of 40151801 in words is "forty million, one hundred fifty-one thousand, eight hundred one".