42195481 has 4 divisors (see below), whose sum is σ = 42210000. Its totient is φ = 42180964.

The previous prime is 42195467. The next prime is 42195499. The reversal of 42195481 is 18459124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42195481 - 2⁵ = 42195449 is a prime.

It is a super-2 number, since 2×42195481² = 3560917233642722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42195431) 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, 1231 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (10552500).

Almost surely, 2^42195481 is an apocalyptic number.

It is an amenable number.

42195481 is a deficient number, since it is larger than the sum of its proper divisors (14519).

42195481 is a wasteful number, since it uses less digits than its factorization.

42195481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14518.

The product of its digits is 11520, while the sum is 34.

The square root of 42195481 is about 6495.8048769956. The cubic root of 42195481 is about 348.1411134452.

The spelling of 42195481 in words is "forty-two million, one hundred ninety-five thousand, four hundred eighty-one".