442100131 has 4 divisors (see below), whose sum is σ = 482291064. Its totient is φ = 401909200.

The previous prime is 442100119. The next prime is 442100137. The reversal of 442100131 is 131001244.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 442100131 - 2⁷ = 442100003 is a prime.

It is a super-2 number, since 2×442100131² = 390905051660434322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442100137) 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, 20095450 + ... + 20095471.

It is an arithmetic number, because the mean of its divisors is an integer number (120572766).

Almost surely, 2^442100131 is an apocalyptic number.

442100131 is a deficient number, since it is larger than the sum of its proper divisors (40190933).

442100131 is a wasteful number, since it uses less digits than its factorization.

442100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40190932.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 442100131 is about 21026.1772797625. The cubic root of 442100131 is about 761.7986777642.

Adding to 442100131 its reverse (131001244), we get a palindrome (573101375).

The spelling of 442100131 in words is "four hundred forty-two million, one hundred thousand, one hundred thirty-one".