102201399 has 32 divisors (see below), whose sum is σ = 168768000. Its totient is φ = 60746112.

The previous prime is 102201391. The next prime is 102201461. The reversal of 102201399 is 993102201.

It is not a de Polignac number, because 102201399 - 2³ = 102201391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2862 + ... + 14580.

It is an arithmetic number, because the mean of its divisors is an integer number (5274000).

Almost surely, 2^102201399 is an apocalyptic number.

102201399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102201399 is a deficient number, since it is larger than the sum of its proper divisors (66566601).

102201399 is a wasteful number, since it uses less digits than its factorization.

102201399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11764 (or 11758 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 102201399 is about 10109.4707576609. The cubic root of 102201399 is about 467.5401877622.

The spelling of 102201399 in words is "one hundred two million, two hundred one thousand, three hundred ninety-nine".