142249695 has 48 divisors (see below), whose sum is σ = 267471360. Its totient is φ = 64362816.

The previous prime is 142249673. The next prime is 142249699. The reversal of 142249695 is 596942241.

It is not a de Polignac number, because 142249695 - 2⁵ = 142249663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142249699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74766 + ... + 76644.

It is an arithmetic number, because the mean of its divisors is an integer number (5572320).

Almost surely, 2^142249695 is an apocalyptic number.

142249695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142249695 is a deficient number, since it is larger than the sum of its proper divisors (125221665).

142249695 is a wasteful number, since it uses less digits than its factorization.

142249695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004 (or 1997 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 142249695 is about 11926.8476556046. The cubic root of 142249695 is about 522.0159600822.

The spelling of 142249695 in words is "one hundred forty-two million, two hundred forty-nine thousand, six hundred ninety-five".