142747671 has 8 divisors (see below), whose sum is σ = 207633024. Its totient is φ = 86513720.

The previous prime is 142747669. The next prime is 142747673. The reversal of 142747671 is 176747241.

It is an interprime number because it is at equal distance from previous prime (142747669) and next prime (142747673).

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 142747671 - 2¹ = 142747669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142747673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2162811 + ... + 2162876.

It is an arithmetic number, because the mean of its divisors is an integer number (25954128).

Almost surely, 2^142747671 is an apocalyptic number.

142747671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142747671 is a deficient number, since it is larger than the sum of its proper divisors (64885353).

142747671 is a wasteful number, since it uses less digits than its factorization.

142747671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325701.

The product of its digits is 65856, while the sum is 39.

The square root of 142747671 is about 11947.7056793344. The cubic root of 142747671 is about 522.6243941213.

It can be divided in two parts, 14274 and 7671, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 142747671 in words is "one hundred forty-two million, seven hundred forty-seven thousand, six hundred seventy-one".