61712102 has 4 divisors (see below), whose sum is σ = 92568156. Its totient is φ = 30856050.

The previous prime is 61712071. The next prime is 61712113. The reversal of 61712102 is 20121716.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15428024 + ... + 15428027.

It is an arithmetic number, because the mean of its divisors is an integer number (23142039).

Almost surely, 2^61712102 is an apocalyptic number.

61712102 is a deficient number, since it is larger than the sum of its proper divisors (30856054).

61712102 is a wasteful number, since it uses less digits than its factorization.

61712102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30856053.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 61712102 is about 7855.7050606550. The cubic root of 61712102 is about 395.1755924965.

Adding to 61712102 its reverse (20121716), we get a palindrome (81833818).

The spelling of 61712102 in words is "sixty-one million, seven hundred twelve thousand, one hundred two".