120143642 has 8 divisors (see below), whose sum is σ = 180562932. Its totient is φ = 59956000.

The previous prime is 120143623. The next prime is 120143659. The reversal of 120143642 is 246341021.

It can be written as a sum of positive squares in 2 ways, for example, as 120143521 + 121 = 10961^2 + 11^2 .

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

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, 56609 + ... + 58692.

Almost surely, 2^120143642 is an apocalyptic number.

120143642 is a deficient number, since it is larger than the sum of its proper divisors (60419290).

120143642 is a wasteful number, since it uses less digits than its factorization.

120143642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115824.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 120143642 is about 10961.0055195680. The cubic root of 120143642 is about 493.4391428552.

Adding to 120143642 its reverse (246341021), we get a palindrome (366484663).

The spelling of 120143642 in words is "one hundred twenty million, one hundred forty-three thousand, six hundred forty-two".