42969061 has 4 divisors (see below), whose sum is σ = 43779852. Its totient is φ = 42158272.

The previous prime is 42969023. The next prime is 42969077. The reversal of 42969061 is 16096924.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37136836 + 5832225 = 6094^2 + 2415^2 .

It is a cyclic number.

It is not a de Polignac number, because 42969061 - 2¹⁵ = 42936293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42969061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42966061) 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, 405316 + ... + 405421.

It is an arithmetic number, because the mean of its divisors is an integer number (10944963).

Almost surely, 2^42969061 is an apocalyptic number.

It is an amenable number.

42969061 is a deficient number, since it is larger than the sum of its proper divisors (810791).

42969061 is an equidigital number, since it uses as much as digits as its factorization.

42969061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810790.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 42969061 is about 6555.0790231697. The cubic root of 42969061 is about 350.2557613570.

The spelling of 42969061 in words is "forty-two million, nine hundred sixty-nine thousand, sixty-one".