102041439 has 4 divisors (see below), whose sum is σ = 136055256. Its totient is φ = 68027624.

The previous prime is 102041417. The next prime is 102041441. The reversal of 102041439 is 934140201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934140201 = 3 ⋅311380067.

It is a cyclic number.

It is not a de Polignac number, because 102041439 - 2⁹ = 102040927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102041339) 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, 17006904 + ... + 17006909.

It is an arithmetic number, because the mean of its divisors is an integer number (34013814).

Almost surely, 2^102041439 is an apocalyptic number.

102041439 is a deficient number, since it is larger than the sum of its proper divisors (34013817).

102041439 is an equidigital number, since it uses as much as digits as its factorization.

102041439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34013816.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 102041439 is about 10101.5562662394. The cubic root of 102041439 is about 467.2961376774.

The spelling of 102041439 in words is "one hundred two million, forty-one thousand, four hundred thirty-nine".