100042347 has 16 divisors (see below), whose sum is σ = 136154880. Its totient is φ = 65320992.

The previous prime is 100042343. The next prime is 100042409. The reversal of 100042347 is 743240001.

It is not a de Polignac number, because 100042347 - 2² = 100042343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100042343) 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, 55218 + ... + 57000.

It is an arithmetic number, because the mean of its divisors is an integer number (8509680).

Almost surely, 2^100042347 is an apocalyptic number.

100042347 is a deficient number, since it is larger than the sum of its proper divisors (36112533).

100042347 is a wasteful number, since it uses less digits than its factorization.

100042347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 100042347 is about 10002.1171258889. The cubic root of 100042347 is about 464.2243932358.

Adding to 100042347 its reverse (743240001), we get a palindrome (843282348).

The spelling of 100042347 in words is "one hundred million, forty-two thousand, three hundred forty-seven".