102082491 has 16 divisors (see below), whose sum is σ = 172838400. Its totient is φ = 58332744.

The previous prime is 102082471. The next prime is 102082537. The reversal of 102082491 is 194280201.

It is not a de Polignac number, because 102082491 - 2⁶ = 102082427 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (102082471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269871 + ... + 270248.

It is an arithmetic number, because the mean of its divisors is an integer number (10802400).

Almost surely, 2^102082491 is an apocalyptic number.

102082491 is a deficient number, since it is larger than the sum of its proper divisors (70755909).

102082491 is an equidigital number, since it uses as much as digits as its factorization.

102082491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540135 (or 540129 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 102082491 is about 10103.5880260430. The cubic root of 102082491 is about 467.3587948007.

The spelling of 102082491 in words is "one hundred two million, eighty-two thousand, four hundred ninety-one".