142130775 has 48 divisors (see below), whose sum is σ = 241056000. Its totient is φ = 73877760.

The previous prime is 142130771. The next prime is 142130803. The reversal of 142130775 is 577031241.

It is not a de Polignac number, because 142130775 - 2² = 142130771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142130771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 714126 + ... + 714324.

It is an arithmetic number, because the mean of its divisors is an integer number (5022000).

Almost surely, 2^142130775 is an apocalyptic number.

142130775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142130775 is a deficient number, since it is larger than the sum of its proper divisors (98925225).

142130775 is a wasteful number, since it uses less digits than its factorization.

142130775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 142130775 is about 11921.8612221414. The cubic root of 142130775 is about 521.8704519904.

The spelling of 142130775 in words is "one hundred forty-two million, one hundred thirty thousand, seven hundred seventy-five".