142551621002 has 48 divisors (see below), whose sum is σ = 253252127232. Its totient is φ = 58949446080.

The previous prime is 142551620821. The next prime is 142551621013. The reversal of 142551621002 is 200126155241.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 26053127 + ... + 26058597.

It is an arithmetic number, because the mean of its divisors is an integer number (5276085984).

Almost surely, 2^142551621002 is an apocalyptic number.

142551621002 is a deficient number, since it is larger than the sum of its proper divisors (110700506230).

142551621002 is a wasteful number, since it uses less digits than its factorization.

142551621002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751 (or 7722 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 142551621002 its reverse (200126155241), we get a palindrome (342677776243).

The spelling of 142551621002 in words is "one hundred forty-two billion, five hundred fifty-one million, six hundred twenty-one thousand, two".