61834542 has 64 divisors (see below), whose sum is σ = 163275264. Its totient is φ = 15114240.

The previous prime is 61834499. The next prime is 61834543. The reversal of 61834542 is 24543816.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61834543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3918 + ... + 11790.

It is an arithmetic number, because the mean of its divisors is an integer number (2551176).

Almost surely, 2^61834542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61834542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81637632).

61834542 is an abundant number, since it is smaller than the sum of its proper divisors (101440722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61834542 is a wasteful number, since it uses less digits than its factorization.

61834542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913.

The product of its digits is 23040, while the sum is 33.

The square root of 61834542 is about 7863.4942614591. The cubic root of 61834542 is about 395.4367694432.

The spelling of 61834542 in words is "sixty-one million, eight hundred thirty-four thousand, five hundred forty-two".