142253621244 has 72 divisors (see below), whose sum is σ = 411445332480. Its totient is φ = 40595388192.

The previous prime is 142253621231. The next prime is 142253621267. The reversal of 142253621244 is 442126352241.

142253621244 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 5 + 3 + 621 + 24 + 4 = 666.

142253621244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142253621199 and 142253621208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124984 + ... + 547839.

Almost surely, 2^142253621244 is an apocalyptic number.

142253621244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142253621244 is an abundant number, since it is smaller than the sum of its proper divisors (269191711236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142253621244 is a wasteful number, since it uses less digits than its factorization.

142253621244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673679 (or 673674 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 142253621244 its reverse (442126352241), we get a palindrome (584379973485).

The spelling of 142253621244 in words is "one hundred forty-two billion, two hundred fifty-three million, six hundred twenty-one thousand, two hundred forty-four".