61205030 has 32 divisors (see below), whose sum is σ = 114567264. Its totient is φ = 23521536.

The previous prime is 61205029. The next prime is 61205057. The reversal of 61205030 is 3050216.

It is a congruent number.

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, 29714 + ... + 31706.

It is an arithmetic number, because the mean of its divisors is an integer number (3580227).

Almost surely, 2^61205030 is an apocalyptic number.

61205030 is a deficient number, since it is larger than the sum of its proper divisors (53362234).

61205030 is a wasteful number, since it uses less digits than its factorization.

61205030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 61205030 is about 7823.3643657956. The cubic root of 61205030 is about 394.0902633602.

Adding to 61205030 its reverse (3050216), we get a palindrome (64255246).

The spelling of 61205030 in words is "sixty-one million, two hundred five thousand, thirty".