42241531 has 8 divisors (see below), whose sum is σ = 43608800. Its totient is φ = 40886208.

The previous prime is 42241519. The next prime is 42241571. The reversal of 42241531 is 13514224.

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

It is a cyclic number.

It is not a de Polignac number, because 42241531 - 2⁷ = 42241403 is a prime.

It is a super-2 number, since 2×42241531² = 3568693882447922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42241571) 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, 4495 + ... + 10231.

It is an arithmetic number, because the mean of its divisors is an integer number (5451100).

Almost surely, 2^42241531 is an apocalyptic number.

42241531 is a deficient number, since it is larger than the sum of its proper divisors (1367269).

42241531 is a wasteful number, since it uses less digits than its factorization.

42241531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973.

The product of its digits is 960, while the sum is 22.

The square root of 42241531 is about 6499.3485058119. The cubic root of 42241531 is about 348.2677152305.

Adding to 42241531 its reverse (13514224), we get a palindrome (55755755).

The spelling of 42241531 in words is "forty-two million, two hundred forty-one thousand, five hundred thirty-one".