104142247 has 8 divisors (see below), whose sum is σ = 113686272. Its totient is φ = 94611000.

The previous prime is 104142239. The next prime is 104142251. The reversal of 104142247 is 742241401.

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

It is not a de Polignac number, because 104142247 - 2³ = 104142239 is a prime.

It is a super-2 number, since 2×104142247² = 21691215220418018, 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 (104142217) 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, 23848 + ... + 27874.

It is an arithmetic number, because the mean of its divisors is an integer number (14210784).

Almost surely, 2^104142247 is an apocalyptic number.

104142247 is a deficient number, since it is larger than the sum of its proper divisors (9544025).

104142247 is a wasteful number, since it uses less digits than its factorization.

104142247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 104142247 is about 10205.0108770153. The cubic root of 104142247 is about 470.4812439092.

Adding to 104142247 its reverse (742241401), we get a palindrome (846383648).

The spelling of 104142247 in words is "one hundred four million, one hundred forty-two thousand, two hundred forty-seven".