142240591478 has 32 divisors (see below), whose sum is σ = 224380800000. Its totient is φ = 67535820576.

The previous prime is 142240591457. The next prime is 142240591529. The reversal of 142240591478 is 874195042241.

142240591478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142240591478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007273 + ... + 1139771.

It is an arithmetic number, because the mean of its divisors is an integer number (7011900000).

Almost surely, 2^142240591478 is an apocalyptic number.

142240591478 is a deficient number, since it is larger than the sum of its proper divisors (82140208522).

142240591478 is a wasteful number, since it uses less digits than its factorization.

142240591478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132836.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 142240591478 in words is "one hundred forty-two billion, two hundred forty million, five hundred ninety-one thousand, four hundred seventy-eight".