40272151 has 8 divisors (see below), whose sum is σ = 40837104. Its totient is φ = 39711360.

The previous prime is 40272137. The next prime is 40272251. The reversal of 40272151 is 15127204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40272151 - 2⁹ = 40271639 is a prime.

It is a super-2 number, since 2×40272151² = 3243692292333602, which contains 22 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 (40272251) 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, 21775 + ... + 23551.

It is an arithmetic number, because the mean of its divisors is an integer number (5104638).

Almost surely, 2^40272151 is an apocalyptic number.

40272151 is a deficient number, since it is larger than the sum of its proper divisors (564953).

40272151 is a wasteful number, since it uses less digits than its factorization.

40272151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 40272151 is about 6346.0342734656. The cubic root of 40272151 is about 342.7690563474.

Adding to 40272151 its reverse (15127204), we get a palindrome (55399355).

The spelling of 40272151 in words is "forty million, two hundred seventy-two thousand, one hundred fifty-one".