102540535 has 8 divisors (see below), whose sum is σ = 123106176. Its totient is φ = 81994080.

The previous prime is 102540523. The next prime is 102540539. The reversal of 102540535 is 535045201.

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

It is not a de Polignac number, because 102540535 - 2¹⁵ = 102507767 is a prime.

It is a super-2 number, since 2×102540535² = 21029122636172450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102540539) 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, 12922 + ... + 19288.

It is an arithmetic number, because the mean of its divisors is an integer number (15388272).

Almost surely, 2^102540535 is an apocalyptic number.

102540535 is a deficient number, since it is larger than the sum of its proper divisors (20565641).

102540535 is an equidigital number, since it uses as much as digits as its factorization.

102540535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9593.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 102540535 is about 10126.2300487398. The cubic root of 102540535 is about 468.0567646709.

Adding to 102540535 its reverse (535045201), we get a palindrome (637585736).

The spelling of 102540535 in words is "one hundred two million, five hundred forty thousand, five hundred thirty-five".