101242458 has 24 divisors (see below), whose sum is σ = 228896928. Its totient is φ = 32280072.

The previous prime is 101242447. The next prime is 101242499. The reversal of 101242458 is 854242101.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121860 + ... + 122687.

It is an arithmetic number, because the mean of its divisors is an integer number (9537372).

Almost surely, 2^101242458 is an apocalyptic number.

101242458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

101242458 is an abundant number, since it is smaller than the sum of its proper divisors (127654470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101242458 is a wasteful number, since it uses less digits than its factorization.

101242458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244578 (or 244575 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 101242458 is about 10061.9311267768. The cubic root of 101242458 is about 466.0733028909.

Adding to 101242458 its reverse (854242101), we get a palindrome (955484559).

The spelling of 101242458 in words is "one hundred one million, two hundred forty-two thousand, four hundred fifty-eight".