61134450 has 96 divisors (see below), whose sum is σ = 165364416. Its totient is φ = 14856960.

The previous prime is 61134439. The next prime is 61134467. The reversal of 61134450 is 5443116.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 61134450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 208504 + ... + 208796.

It is an arithmetic number, because the mean of its divisors is an integer number (1722546).

Almost surely, 2^61134450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61134450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82682208).

61134450 is an abundant number, since it is smaller than the sum of its proper divisors (104229966).

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

61134450 is a wasteful number, since it uses less digits than its factorization.

61134450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 61134450 is about 7818.8522175573. The cubic root of 61134450 is about 393.9387203174.

Adding to 61134450 its reverse (5443116), we get a palindrome (66577566).

The spelling of 61134450 in words is "sixty-one million, one hundred thirty-four thousand, four hundred fifty".