61500102 has 8 divisors (see below), whose sum is σ = 123000216. Its totient is φ = 20500032.

The previous prime is 61500083. The next prime is 61500107. The reversal of 61500102 is 20100516.

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

61500102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61500107) 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, 5125003 + ... + 5125014.

It is an arithmetic number, because the mean of its divisors is an integer number (15375027).

Almost surely, 2^61500102 is an apocalyptic number.

61500102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61500102 is a wasteful number, since it uses less digits than its factorization.

61500102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10250022.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 61500102 is about 7842.2000739588. The cubic root of 61500102 is about 394.7225568688.

Adding to 61500102 its reverse (20100516), we get a palindrome (81600618).

The spelling of 61500102 in words is "sixty-one million, five hundred thousand, one hundred two".