101405242 has 8 divisors (see below), whose sum is σ = 160113600. Its totient is φ = 48034044.

The previous prime is 101405233. The next prime is 101405267. The reversal of 101405242 is 242504101.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334242 + ... + 1334317.

It is an arithmetic number, because the mean of its divisors is an integer number (20014200).

Almost surely, 2^101405242 is an apocalyptic number.

101405242 is a deficient number, since it is larger than the sum of its proper divisors (58708358).

101405242 is a wasteful number, since it uses less digits than its factorization.

101405242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668580.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 101405242 is about 10070.0169811178. The cubic root of 101405242 is about 466.3229631350.

Adding to 101405242 its reverse (242504101), we get a palindrome (343909343).

The spelling of 101405242 in words is "one hundred one million, four hundred five thousand, two hundred forty-two".