61100542 has 16 divisors (see below), whose sum is σ = 99084240. Its totient is φ = 28159488.

The previous prime is 61100539. The next prime is 61100563. The reversal of 61100542 is 24500116.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20323 + ... + 23134.

It is an arithmetic number, because the mean of its divisors is an integer number (6192765).

Almost surely, 2^61100542 is an apocalyptic number.

61100542 is a deficient number, since it is larger than the sum of its proper divisors (37983698).

61100542 is a wasteful number, since it uses less digits than its factorization.

61100542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43515.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61100542 is about 7816.6835678566. The cubic root of 61100542 is about 393.8658746225.

Adding to 61100542 its reverse (24500116), we get a palindrome (85600658).

The spelling of 61100542 in words is "sixty-one million, one hundred thousand, five hundred forty-two".