40142136234155 has 8 divisors (see below), whose sum is σ = 48179024882352. Its totient is φ = 32108068053088.

The previous prime is 40142136234143. The next prime is 40142136234199. The reversal of 40142136234155 is 55143263124104.

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 40142136234155 - 2⁴ = 40142136234139 is a prime.

It is a super-2 number, since 2×40142136234155² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705085469 + ... + 705142398.

It is an arithmetic number, because the mean of its divisors is an integer number (6022378110294).

Almost surely, 2^{40142136234155} is an apocalyptic number.

40142136234155 is a deficient number, since it is larger than the sum of its proper divisors (8036888648197).

40142136234155 is a wasteful number, since it uses less digits than its factorization.

40142136234155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410233565.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 40142136234155 its reverse (55143263124104), we get a palindrome (95285399358259).

The spelling of 40142136234155 in words is "forty trillion, one hundred forty-two billion, one hundred thirty-six million, two hundred thirty-four thousand, one hundred fifty-five".