68902142 has 4 divisors (see below), whose sum is σ = 103353216. Its totient is φ = 34451070.

The previous prime is 68902121. The next prime is 68902157. The reversal of 68902142 is 24120986.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 68902099 and 68902108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17225534 + ... + 17225537.

It is an arithmetic number, because the mean of its divisors is an integer number (25838304).

Almost surely, 2^68902142 is an apocalyptic number.

68902142 is a deficient number, since it is larger than the sum of its proper divisors (34451074).

68902142 is a wasteful number, since it uses less digits than its factorization.

68902142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34451073.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 68902142 is about 8300.7314135563. The cubic root of 68902142 is about 409.9626021808.

The spelling of 68902142 in words is "sixty-eight million, nine hundred two thousand, one hundred forty-two".