61115230 has 16 divisors (see below), whose sum is σ = 120008304. Its totient is φ = 22223680.

The previous prime is 61115227. The next prime is 61115239. The reversal of 61115230 is 3251116.

It is a junction number, because it is equal to n+sod(n) for n = 61115198 and 61115207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61115239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277687 + ... + 277906.

It is an arithmetic number, because the mean of its divisors is an integer number (7500519).

Almost surely, 2^61115230 is an apocalyptic number.

61115230 is a deficient number, since it is larger than the sum of its proper divisors (58893074).

61115230 is a wasteful number, since it uses less digits than its factorization.

61115230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555611.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61115230 is about 7817.6230402853. The cubic root of 61115230 is about 393.8974326539.

Adding to 61115230 its reverse (3251116), we get a palindrome (64366346).

The spelling of 61115230 in words is "sixty-one million, one hundred fifteen thousand, two hundred thirty".