142177749453 has 24 divisors (see below), whose sum is σ = 209839189248. Its totient is φ = 92723434272.

The previous prime is 142177749451. The next prime is 142177749479. The reversal of 142177749453 is 354947771241.

142177749453 is a `hidden beast` number, since 14 + 2 + 177 + 7 + 4 + 9 + 453 = 666.

It is not a de Polignac number, because 142177749453 - 2¹ = 142177749451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142177749453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142177749451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802275 + ... + 963327.

It is an arithmetic number, because the mean of its divisors is an integer number (8743299552).

Almost surely, 2^142177749453 is an apocalyptic number.

It is an amenable number.

142177749453 is a deficient number, since it is larger than the sum of its proper divisors (67661439795).

142177749453 is a wasteful number, since it uses less digits than its factorization.

142177749453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163193 (or 163190 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The spelling of 142177749453 in words is "one hundred forty-two billion, one hundred seventy-seven million, seven hundred forty-nine thousand, four hundred fifty-three".