102861898 has 16 divisors (see below), whose sum is σ = 162324000. Its totient is φ = 48814192.

The previous prime is 102861853. The next prime is 102861901. The reversal of 102861898 is 898168201.

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, 11608 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (10145250).

Almost surely, 2^102861898 is an apocalyptic number.

102861898 is a deficient number, since it is larger than the sum of its proper divisors (59462102).

102861898 is a wasteful number, since it uses less digits than its factorization.

102861898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30149.

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 102861898 is about 10142.0854857371. The cubic root of 102861898 is about 468.5452195175.

It can be divided in two parts, 1028 and 61898, that added together give a palindrome (62926).

The spelling of 102861898 in words is "one hundred two million, eight hundred sixty-one thousand, eight hundred ninety-eight".