61015030 has 16 divisors (see below), whose sum is σ = 110323584. Its totient is φ = 24295680.

The previous prime is 61015013. The next prime is 61015049. The reversal of 61015030 is 3051016.

It is a junction number, because it is equal to n+sod(n) for n = 61014995 and 61015013.

It is a congruent number.

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, 11451 + ... + 15910.

It is an arithmetic number, because the mean of its divisors is an integer number (6895224).

Almost surely, 2^61015030 is an apocalyptic number.

61015030 is a deficient number, since it is larger than the sum of its proper divisors (49308554).

61015030 is a wasteful number, since it uses less digits than its factorization.

61015030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27591.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 61015030 is about 7811.2118137969. The cubic root of 61015030 is about 393.6820465583.

Adding to 61015030 its reverse (3051016), we get a palindrome (64066046).

The spelling of 61015030 in words is "sixty-one million, fifteen thousand, thirty".