70831142 has 8 divisors (see below), whose sum is σ = 106289496. Its totient is φ = 35401312.

The previous prime is 70831087. The next prime is 70831177. The reversal of 70831142 is 24113807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878 + ... + 11934.

It is an arithmetic number, because the mean of its divisors is an integer number (13286187).

Almost surely, 2^70831142 is an apocalyptic number.

70831142 is a deficient number, since it is larger than the sum of its proper divisors (35458354).

70831142 is a wasteful number, since it uses less digits than its factorization.

70831142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14262.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 70831142 is about 8416.1239296959. The cubic root of 70831142 is about 413.7532466590.

Adding to 70831142 its reverse (24113807), we get a palindrome (94944949).

The spelling of 70831142 in words is "seventy million, eight hundred thirty-one thousand, one hundred forty-two".