616217542 has 4 divisors (see below), whose sum is σ = 924326316. Its totient is φ = 308108770.

The previous prime is 616217471. The next prime is 616217551. The reversal of 616217542 is 245712616.

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 = 616217498 and 616217507.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 154054384 + ... + 154054387.

It is an arithmetic number, because the mean of its divisors is an integer number (231081579).

Almost surely, 2^616217542 is an apocalyptic number.

616217542 is a deficient number, since it is larger than the sum of its proper divisors (308108774).

616217542 is a wasteful number, since it uses less digits than its factorization.

616217542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308108773.

The product of its digits is 20160, while the sum is 34.

The square root of 616217542 is about 24823.7294136075. The cubic root of 616217542 is about 850.9643228654.

The spelling of 616217542 in words is "six hundred sixteen million, two hundred seventeen thousand, five hundred forty-two".