40142315 has 4 divisors (see below), whose sum is σ = 48170784. Its totient is φ = 32113848.

The previous prime is 40142281. The next prime is 40142339. The reversal of 40142315 is 51324104.

40142315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40142315 - 2⁶ = 40142251 is a prime.

It is a super-2 number, since 2×40142315² = 3222810907118450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4014227 + ... + 4014236.

It is an arithmetic number, because the mean of its divisors is an integer number (12042696).

Almost surely, 2^40142315 is an apocalyptic number.

40142315 is a deficient number, since it is larger than the sum of its proper divisors (8028469).

40142315 is an equidigital number, since it uses as much as digits as its factorization.

40142315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028468.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40142315 is about 6335.7963193272. The cubic root of 40142315 is about 342.4003013134.

Adding to 40142315 its reverse (51324104), we get a palindrome (91466419).

The spelling of 40142315 in words is "forty million, one hundred forty-two thousand, three hundred fifteen".