61547042 has 16 divisors (see below), whose sum is σ = 98094240. Its totient is φ = 28879488.

The previous prime is 61547029. The next prime is 61547047. The reversal of 61547042 is 24074516.

It is a junction number, because it is equal to n+sod(n) for n = 61546996 and 61547014.

It is not an unprimeable number, because it can be changed into a prime (61547047) 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 7 ways as a sum of consecutive naturals, for example, 3503 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (6130890).

Almost surely, 2^61547042 is an apocalyptic number.

61547042 is a deficient number, since it is larger than the sum of its proper divisors (36547198).

61547042 is a wasteful number, since it uses less digits than its factorization.

61547042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 61547042 is about 7845.1922857251. The cubic root of 61547042 is about 394.8229554281.

The spelling of 61547042 in words is "sixty-one million, five hundred forty-seven thousand, forty-two".