102352591 has 4 divisors (see below), whose sum is σ = 111657384. Its totient is φ = 93047800.

The previous prime is 102352589. The next prime is 102352633. The reversal of 102352591 is 195253201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102352591 - 2¹ = 102352589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102352531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4652380 + ... + 4652401.

It is an arithmetic number, because the mean of its divisors is an integer number (27914346).

Almost surely, 2^102352591 is an apocalyptic number.

102352591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102352591 is a deficient number, since it is larger than the sum of its proper divisors (9304793).

102352591 is an equidigital number, since it uses as much as digits as its factorization.

102352591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304792.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 102352591 is about 10116.9457347561. The cubic root of 102352591 is about 467.7706265745.

The spelling of 102352591 in words is "one hundred two million, three hundred fifty-two thousand, five hundred ninety-one".