61202980 has 12 divisors (see below), whose sum is σ = 128526300. Its totient is φ = 24481184.

The previous prime is 61202957. The next prime is 61202983. The reversal of 61202980 is 8920216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26440164 + 34762816 = 5142^2 + 5896^2 .

It is not an unprimeable number, because it can be changed into a prime (61202983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530055 + ... + 1530094.

It is an arithmetic number, because the mean of its divisors is an integer number (10710525).

Almost surely, 2^61202980 is an apocalyptic number.

It is an amenable number.

61202980 is an abundant number, since it is smaller than the sum of its proper divisors (67323320).

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

61202980 is a wasteful number, since it uses less digits than its factorization.

61202980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060158 (or 3060156 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 61202980 is about 7823.2333468969. The cubic root of 61202980 is about 394.0858634274.

The spelling of 61202980 in words is "sixty-one million, two hundred two thousand, nine hundred eighty".