142129383 has 24 divisors (see below), whose sum is σ = 210008064. Its totient is φ = 85433040.

The previous prime is 142129381. The next prime is 142129387. The reversal of 142129383 is 383921241.

It is not a de Polignac number, because 142129383 - 2¹ = 142129381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142129381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44560 + ... + 47642.

It is an arithmetic number, because the mean of its divisors is an integer number (8750336).

Almost surely, 2^142129383 is an apocalyptic number.

142129383 is a deficient number, since it is larger than the sum of its proper divisors (67878681).

142129383 is a wasteful number, since it uses less digits than its factorization.

142129383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235 (or 3224 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 142129383 is about 11921.8028418524. The cubic root of 142129383 is about 521.8687482871.

The spelling of 142129383 in words is "one hundred forty-two million, one hundred twenty-nine thousand, three hundred eighty-three".