40263151 has 4 divisors (see below), whose sum is σ = 40276872. Its totient is φ = 40249432.

The previous prime is 40263149. The next prime is 40263163. The reversal of 40263151 is 15136204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40263151 - 2¹ = 40263149 is a prime.

It is a super-2 number, since 2×40263151² = 3242242656897602, 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 (40263101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481 + ... + 8986.

It is an arithmetic number, because the mean of its divisors is an integer number (10069218).

Almost surely, 2^40263151 is an apocalyptic number.

40263151 is a deficient number, since it is larger than the sum of its proper divisors (13721).

40263151 is an equidigital number, since it uses as much as digits as its factorization.

40263151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40263151 is about 6345.3251295737. The cubic root of 40263151 is about 342.7435204931.

Adding to 40263151 its reverse (15136204), we get a palindrome (55399355).

The spelling of 40263151 in words is "forty million, two hundred sixty-three thousand, one hundred fifty-one".