102540430 has 32 divisors (see below), whose sum is σ = 196274016. Its totient is φ = 38436864.

The previous prime is 102540421. The next prime is 102540443. The reversal of 102540430 is 34045201.

It is a junction number, because it is equal to n+sod(n) for n = 102540398 and 102540407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42517 + ... + 44863.

It is an arithmetic number, because the mean of its divisors is an integer number (6133563).

Almost surely, 2^102540430 is an apocalyptic number.

102540430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102540430 is a deficient number, since it is larger than the sum of its proper divisors (93733586).

102540430 is a wasteful number, since it uses less digits than its factorization.

102540430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 102540430 is about 10126.2248641831. The cubic root of 102540430 is about 468.0566049097.

Adding to 102540430 its reverse (34045201), we get a palindrome (136585631).

The spelling of 102540430 in words is "one hundred two million, five hundred forty thousand, four hundred thirty".