61148802 has 128 divisors (see below), whose sum is σ = 157409280. Its totient is φ = 15681600.

The previous prime is 61148761. The next prime is 61148863. The reversal of 61148802 is 20884116.

It is a self number, because there is not a number n which added to its sum of digits gives 61148802.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1972527 + ... + 1972557.

It is an arithmetic number, because the mean of its divisors is an integer number (1229760).

Almost surely, 2^61148802 is an apocalyptic number.

61148802 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 61148802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78704640).

61148802 is an abundant number, since it is smaller than the sum of its proper divisors (96260478).

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

61148802 is a wasteful number, since it uses less digits than its factorization.

61148802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 61148802 is about 7819.7699454651. The cubic root of 61148802 is about 393.9695450877.

The spelling of 61148802 in words is "sixty-one million, one hundred forty-eight thousand, eight hundred two".