40023151 has 24 divisors (see below), whose sum is σ = 51464160. Its totient is φ = 30868992.

The previous prime is 40023149. The next prime is 40023157. The reversal of 40023151 is 15132004.

It is not a de Polignac number, because 40023151 - 2¹ = 40023149 is a prime.

It is a super-3 number, since 3×40023151³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18115 + ... + 20203.

It is an arithmetic number, because the mean of its divisors is an integer number (2144340).

Almost surely, 2^40023151 is an apocalyptic number.

40023151 is a deficient number, since it is larger than the sum of its proper divisors (11441009).

40023151 is a wasteful number, since it uses less digits than its factorization.

40023151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 40023151 is about 6326.3853028408. The cubic root of 40023151 is about 342.0611560323.

Adding to 40023151 its reverse (15132004), we get a palindrome (55155155).

The spelling of 40023151 in words is "forty million, twenty-three thousand, one hundred fifty-one".