855615142 has 16 divisors (see below), whose sum is σ = 1324339632. Its totient is φ = 414321280.

The previous prime is 855615113. The next prime is 855615149. The reversal of 855615142 is 241516558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855615149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26848 + ... + 49315.

It is an arithmetic number, because the mean of its divisors is an integer number (82771227).

Almost surely, 2^855615142 is an apocalyptic number.

855615142 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

855615142 is a deficient number, since it is larger than the sum of its proper divisors (468724490).

855615142 is a wasteful number, since it uses less digits than its factorization.

855615142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76343.

The product of its digits is 48000, while the sum is 37.

The square root of 855615142 is about 29250.8998494063. The cubic root of 855615142 is about 949.3495610428.

The spelling of 855615142 in words is "eight hundred fifty-five million, six hundred fifteen thousand, one hundred forty-two".