102522431 has 8 divisors (see below), whose sum is σ = 116705664. Its totient is φ = 89149720.

The previous prime is 102522421. The next prime is 102522437. The reversal of 102522431 is 134225201.

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

It is a de Polignac number, because none of the positive numbers 2^k-102522431 is a prime.

It is a super-3 number, since 3×102522431³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102522437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202361 + ... + 202866.

It is an arithmetic number, because the mean of its divisors is an integer number (14588208).

Almost surely, 2^102522431 is an apocalyptic number.

102522431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102522431 is a deficient number, since it is larger than the sum of its proper divisors (14183233).

102522431 is a wasteful number, since it uses less digits than its factorization.

102522431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405261.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102522431 is about 10125.3360931872. The cubic root of 102522431 is about 468.0292171961.

Adding to 102522431 its reverse (134225201), we get a palindrome (236747632).

The spelling of 102522431 in words is "one hundred two million, five hundred twenty-two thousand, four hundred thirty-one".