61163542 has 8 divisors (see below), whose sum is σ = 100085832. Its totient is φ = 27801600.

The previous prime is 61163533. The next prime is 61163549. The reversal of 61163542 is 24536116.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61163542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61163549) by changing a digit.

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, 1390059 + ... + 1390102.

It is an arithmetic number, because the mean of its divisors is an integer number (12510729).

Almost surely, 2^61163542 is an apocalyptic number.

61163542 is a deficient number, since it is larger than the sum of its proper divisors (38922290).

61163542 is a wasteful number, since it uses less digits than its factorization.

61163542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780174.

The product of its digits is 4320, while the sum is 28.

The square root of 61163542 is about 7820.7123716449. The cubic root of 61163542 is about 394.0011981720.

Adding to 61163542 its reverse (24536116), we get a palindrome (85699658).

The spelling of 61163542 in words is "sixty-one million, one hundred sixty-three thousand, five hundred forty-two".