61151460 has 48 divisors (see below), whose sum is σ = 172936512. Its totient is φ = 16144000.

The previous prime is 61151429. The next prime is 61151477. The reversal of 61151460 is 6415116.

It is a self number, because there is not a number n which added to its sum of digits gives 61151460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1015 + ... + 11105.

It is an arithmetic number, because the mean of its divisors is an integer number (3602844).

Almost surely, 2^61151460 is an apocalyptic number.

61151460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61151460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86468256).

61151460 is an abundant number, since it is smaller than the sum of its proper divisors (111785052).

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

61151460 is a wasteful number, since it uses less digits than its factorization.

61151460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204 (or 10202 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 61151460 is about 7819.9398974672. The cubic root of 61151460 is about 393.9752533265.

Adding to 61151460 its reverse (6415116), we get a palindrome (67566576).

The spelling of 61151460 in words is "sixty-one million, one hundred fifty-one thousand, four hundred sixty".