142147622 has 8 divisors (see below), whose sum is σ = 215291856. Its totient is φ = 70383672.

The previous prime is 142147601. The next prime is 142147631. The reversal of 142147622 is 226741241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344813 + ... + 345224.

It is an arithmetic number, because the mean of its divisors is an integer number (26911482).

Almost surely, 2^142147622 is an apocalyptic number.

142147622 is a deficient number, since it is larger than the sum of its proper divisors (73144234).

142147622 is a wasteful number, since it uses less digits than its factorization.

142147622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690142.

The product of its digits is 5376, while the sum is 29.

The square root of 142147622 is about 11922.5677603442. The cubic root of 142147622 is about 521.8910705702.

Adding to 142147622 its reverse (226741241), we get a palindrome (368888863).

The spelling of 142147622 in words is "one hundred forty-two million, one hundred forty-seven thousand, six hundred twenty-two".