142663462521 has 4 divisors (see below), whose sum is σ = 190217950032. Its totient is φ = 95108975012.

The previous prime is 142663462483. The next prime is 142663462573. The reversal of 142663462521 is 125264366241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142663462521 - 2¹⁸ = 142663200377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142663460521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23777243751 + ... + 23777243756.

It is an arithmetic number, because the mean of its divisors is an integer number (47554487508).

Almost surely, 2^142663462521 is an apocalyptic number.

It is an amenable number.

142663462521 is a deficient number, since it is larger than the sum of its proper divisors (47554487511).

142663462521 is an equidigital number, since it uses as much as digits as its factorization.

142663462521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47554487510.

The product of its digits is 414720, while the sum is 42.

The spelling of 142663462521 in words is "one hundred forty-two billion, six hundred sixty-three million, four hundred sixty-two thousand, five hundred twenty-one".