142063631 has 4 divisors (see below), whose sum is σ = 142140264. Its totient is φ = 141987000.

The previous prime is 142063619. The next prime is 142063639. The reversal of 142063631 is 136360241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136360241 = 79 ⋅1726079.

It is a cyclic number.

It is not a de Polignac number, because 142063631 - 2²⁶ = 74954767 is a prime.

It is a super-2 number, since 2×142063631² = 40364150505808322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142063631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142063639) 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, 35465 + ... + 39266.

It is an arithmetic number, because the mean of its divisors is an integer number (35535066).

Almost surely, 2^142063631 is an apocalyptic number.

142063631 is a deficient number, since it is larger than the sum of its proper divisors (76633).

142063631 is an equidigital number, since it uses as much as digits as its factorization.

142063631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76632.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 142063631 is about 11919.0448862314. The cubic root of 142063631 is about 521.7882601055.

The spelling of 142063631 in words is "one hundred forty-two million, sixty-three thousand, six hundred thirty-one".