61513030 has 8 divisors (see below), whose sum is σ = 110723472. Its totient is φ = 24605208.

The previous prime is 61513027. The next prime is 61513033. The reversal of 61513030 is 3031516.

It is an interprime number because it is at equal distance from previous prime (61513027) and next prime (61513033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61512989 and 61513007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61513033) 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, 3075642 + ... + 3075661.

It is an arithmetic number, because the mean of its divisors is an integer number (13840434).

Almost surely, 2^61513030 is an apocalyptic number.

61513030 is a deficient number, since it is larger than the sum of its proper divisors (49210442).

61513030 is a wasteful number, since it uses less digits than its factorization.

61513030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6151310.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 61513030 is about 7843.0242891374. The cubic root of 61513030 is about 394.7502132765.

Adding to 61513030 its reverse (3031516), we get a palindrome (64544546).

The spelling of 61513030 in words is "sixty-one million, five hundred thirteen thousand, thirty".