142129485 has 28 divisors (see below), whose sum is σ = 255722652. Its totient is φ = 75800448.

The previous prime is 142129483. The next prime is 142129487. The reversal of 142129485 is 584921241.

142129485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142129483) and next prime (142129487).

It can be written as a sum of positive squares in 2 ways, for example, as 44475561 + 97653924 = 6669^2 + 9882^2 .

It is not a de Polignac number, because 142129485 - 2¹ = 142129483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142129483) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 15852 + ... + 23141.

Almost surely, 2^142129485 is an apocalyptic number.

142129485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142129485 is a deficient number, since it is larger than the sum of its proper divisors (113593167).

142129485 is an frugal number, since it uses more digits than its factorization.

142129485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39016 (or 39001 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 142129485 is about 11921.8071197281. The cubic root of 142129485 is about 521.8688731278.

The spelling of 142129485 in words is "one hundred forty-two million, one hundred twenty-nine thousand, four hundred eighty-five".