61021130 has 16 divisors (see below), whose sum is σ = 110812104. Its totient is φ = 24192000.

The previous prime is 61021127. The next prime is 61021151. The reversal of 61021130 is 3112016.

It can be written as a sum of positive squares in 4 ways, for example, as 21242881 + 39778249 = 4609^2 + 6307^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25871 + ... + 28130.

Almost surely, 2^61021130 is an apocalyptic number.

61021130 is a deficient number, since it is larger than the sum of its proper divisors (49790974).

61021130 is a wasteful number, since it uses less digits than its factorization.

61021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54121.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 61021130 is about 7811.6022684210. The cubic root of 61021130 is about 393.6951656234.

Adding to 61021130 its reverse (3112016), we get a palindrome (64133146).

The spelling of 61021130 in words is "sixty-one million, twenty-one thousand, one hundred thirty".