142720151 has 8 divisors (see below), whose sum is σ = 172703520. Its totient is φ = 115135488.

The previous prime is 142720147. The next prime is 142720159. The reversal of 142720151 is 151027241.

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

It is a cyclic number.

It is not a de Polignac number, because 142720151 - 2² = 142720147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142720159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599546 + ... + 599783.

It is an arithmetic number, because the mean of its divisors is an integer number (21587940).

Almost surely, 2^142720151 is an apocalyptic number.

142720151 is a deficient number, since it is larger than the sum of its proper divisors (29983369).

142720151 is a wasteful number, since it uses less digits than its factorization.

142720151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199353.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 142720151 is about 11946.5539382702. The cubic root of 142720151 is about 522.5908067719.

Adding to 142720151 its reverse (151027241), we get a palindrome (293747392).

The spelling of 142720151 in words is "one hundred forty-two million, seven hundred twenty thousand, one hundred fifty-one".