142403252761 has 32 divisors (see below), whose sum is σ = 181567964160. Its totient is φ = 108472478400.

The previous prime is 142403252743. The next prime is 142403252777. The reversal of 142403252761 is 167252304241.

It is not a de Polignac number, because 142403252761 - 2⁵ = 142403252729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142403252761.

It is not an unprimeable number, because it can be changed into a prime (142403252161) 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 31 ways as a sum of consecutive naturals, for example, 570475 + ... + 781183.

It is an arithmetic number, because the mean of its divisors is an integer number (5673998880).

Almost surely, 2^142403252761 is an apocalyptic number.

142403252761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142403252761 is a deficient number, since it is larger than the sum of its proper divisors (39164711399).

142403252761 is a wasteful number, since it uses less digits than its factorization.

142403252761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210925.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 142403252761 in words is "one hundred forty-two billion, four hundred three million, two hundred fifty-two thousand, seven hundred sixty-one".