616416142 has 4 divisors (see below), whose sum is σ = 924624216. Its totient is φ = 308208070.

The previous prime is 616416131. The next prime is 616416149. The reversal of 616416142 is 241614616.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616416149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154104034 + ... + 154104037.

It is an arithmetic number, because the mean of its divisors is an integer number (231156054).

Almost surely, 2^616416142 is an apocalyptic number.

616416142 is a deficient number, since it is larger than the sum of its proper divisors (308208074).

616416142 is a wasteful number, since it uses less digits than its factorization.

616416142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308208073.

The product of its digits is 6912, while the sum is 31.

The square root of 616416142 is about 24827.7292960915. The cubic root of 616416142 is about 851.0557317974.

The spelling of 616416142 in words is "six hundred sixteen million, four hundred sixteen thousand, one hundred forty-two".