61112542 has 4 divisors (see below), whose sum is σ = 91668816. Its totient is φ = 30556270.

The previous prime is 61112507. The next prime is 61112561. The reversal of 61112542 is 24521116.

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

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, 15278134 + ... + 15278137.

It is an arithmetic number, because the mean of its divisors is an integer number (22917204).

Almost surely, 2^61112542 is an apocalyptic number.

61112542 is a deficient number, since it is larger than the sum of its proper divisors (30556274).

61112542 is a wasteful number, since it uses less digits than its factorization.

61112542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30556273.

The product of its digits is 480, while the sum is 22.

The square root of 61112542 is about 7817.4511191308. The cubic root of 61112542 is about 393.8916577059.

Adding to 61112542 its reverse (24521116), we get a palindrome (85633658).

The spelling of 61112542 in words is "sixty-one million, one hundred twelve thousand, five hundred forty-two".