40142541 has 8 divisors (see below), whose sum is σ = 53945344. Its totient is φ = 26550720.

The previous prime is 40142533. The next prime is 40142549. The reversal of 40142541 is 14524104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40142533) and next prime (40142549).

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

It is not a de Polignac number, because 40142541 - 2³ = 40142533 is a prime.

It is a super-2 number, since 2×40142541² = 3222847195873362, 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 (40142549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52300 + ... + 53061.

It is an arithmetic number, because the mean of its divisors is an integer number (6743168).

Almost surely, 2^40142541 is an apocalyptic number.

It is an amenable number.

40142541 is a deficient number, since it is larger than the sum of its proper divisors (13802803).

40142541 is a wasteful number, since it uses less digits than its factorization.

40142541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105491.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40142541 is about 6335.8141544714. The cubic root of 40142541 is about 342.4009438799.

Adding to 40142541 its reverse (14524104), we get a palindrome (54666645).

It can be divided in two parts, 4014 and 2541, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 40142541 in words is "forty million, one hundred forty-two thousand, five hundred forty-one".