40154161 has 8 divisors (see below), whose sum is σ = 41398560. Its totient is φ = 38928672.

The previous prime is 40154137. The next prime is 40154171. The reversal of 40154161 is 16145104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40154161 - 2⁷ = 40154033 is a prime.

It is a super-2 number, since 2×40154161² = 3224713291227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40154111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355 + ... + 8968.

It is an arithmetic number, because the mean of its divisors is an integer number (5174820).

Almost surely, 2^40154161 is an apocalyptic number.

It is an amenable number.

40154161 is a deficient number, since it is larger than the sum of its proper divisors (1244399).

40154161 is an equidigital number, since it uses as much as digits as its factorization.

40154161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9455.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 40154161 is about 6336.7310973403. The cubic root of 40154161 is about 342.4339787852.

Adding to 40154161 its reverse (16145104), we get a palindrome (56299265).

The spelling of 40154161 in words is "forty million, one hundred fifty-four thousand, one hundred sixty-one".