102246989 has 8 divisors (see below), whose sum is σ = 112798392. Its totient is φ = 92079360.

The previous prime is 102246973. The next prime is 102247003. The reversal of 102246989 is 989642201.

It can be written as a sum of positive squares in 4 ways, for example, as 902500 + 101344489 = 950^2 + 10067^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102246989 - 2⁴ = 102246973 is a prime.

It is a super-2 number, since 2×102246989² = 20908893519132242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102246589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95384 + ... + 96449.

It is an arithmetic number, because the mean of its divisors is an integer number (14099799).

Almost surely, 2^102246989 is an apocalyptic number.

It is an amenable number.

102246989 is a deficient number, since it is larger than the sum of its proper divisors (10551403).

102246989 is a wasteful number, since it uses less digits than its factorization.

102246989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191887.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 102246989 is about 10111.7253226143. The cubic root of 102246989 is about 467.6096975365.

The spelling of 102246989 in words is "one hundred two million, two hundred forty-six thousand, nine hundred eighty-nine".