142145057475 has 144 divisors (see below), whose sum is σ = 264811622400. Its totient is φ = 72840418560.

The previous prime is 142145057471. The next prime is 142145057567. The reversal of 142145057475 is 574750541241.

142145057475 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 4 + 5 + 0 + 574 + 75 = 666.

It is not a de Polignac number, because 142145057475 - 2² = 142145057471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 142145057475.

It is not an unprimeable number, because it can be changed into a prime (142145057471) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 191311954 + ... + 191312696.

It is an arithmetic number, because the mean of its divisors is an integer number (1838969600).

Almost surely, 2^142145057475 is an apocalyptic number.

142145057475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142145057475 is a deficient number, since it is larger than the sum of its proper divisors (122666564925).

142145057475 is a wasteful number, since it uses less digits than its factorization.

142145057475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The spelling of 142145057475 in words is "one hundred forty-two billion, one hundred forty-five million, fifty-seven thousand, four hundred seventy-five".