102661102 has 16 divisors (see below), whose sum is σ = 159894000. Its totient is φ = 49376320.

The previous prime is 102661093. The next prime is 102661103. The reversal of 102661102 is 201166201.

It is a self number, because there is not a number n which added to its sum of digits gives 102661102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102661103) 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, 13149 + ... + 19447.

It is an arithmetic number, because the mean of its divisors is an integer number (9993375).

Almost surely, 2^102661102 is an apocalyptic number.

102661102 is a deficient number, since it is larger than the sum of its proper divisors (57232898).

102661102 is a wasteful number, since it uses less digits than its factorization.

102661102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 102661102 is about 10132.1815025196. The cubic root of 102661102 is about 468.2401396219.

It can be divided in two parts, 1026 and 61102, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 102661102 in words is "one hundred two million, six hundred sixty-one thousand, one hundred two".