142240591477 has 8 divisors (see below), whose sum is σ = 144373541400. Its totient is φ = 140119524864.

The previous prime is 142240591457. The next prime is 142240591529. The reversal of 142240591477 is 774195042241.

It is a happy number.

142240591477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1019461041 + 141221130436 = 31929^2 + 375794^2 .

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 142240591477 - 2¹⁵ = 142240558709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142240591447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2946708 + ... + 2994589.

It is an arithmetic number, because the mean of its divisors is an integer number (18046692675).

Almost surely, 2^142240591477 is an apocalyptic number.

It is an amenable number.

142240591477 is a deficient number, since it is larger than the sum of its proper divisors (2132949923).

142240591477 is an equidigital number, since it uses as much as digits as its factorization.

142240591477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941655.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 142240591477 in words is "one hundred forty-two billion, two hundred forty million, five hundred ninety-one thousand, four hundred seventy-seven".