102899841 has 16 divisors (see below), whose sum is σ = 150633408. Its totient is φ = 61963200.

The previous prime is 102899837. The next prime is 102899869. The reversal of 102899841 is 148998201.

It is not a de Polignac number, because 102899841 - 2² = 102899837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102899793 and 102899802.

It is not an unprimeable number, because it can be changed into a prime (102899821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4750 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (9414588).

Almost surely, 2^102899841 is an apocalyptic number.

102899841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102899841 is a deficient number, since it is larger than the sum of its proper divisors (47733567).

102899841 is a wasteful number, since it uses less digits than its factorization.

102899841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20032.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 102899841 is about 10143.9558851564. The cubic root of 102899841 is about 468.6028236972.

It can be divided in two parts, 102899 and 841, that added together give a triangular number (103740 = T₄₅₅).

The spelling of 102899841 in words is "one hundred two million, eight hundred ninety-nine thousand, eight hundred forty-one".