42311653 has 4 divisors (see below), whose sum is σ = 42447148. Its totient is φ = 42176160.

The previous prime is 42311617. The next prime is 42311663. The reversal of 42311653 is 35611324.

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 18818244 + 23493409 = 4338^2 + 4847^2 .

It is a cyclic number.

It is not a de Polignac number, because 42311653 - 2¹³ = 42303461 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42311663) 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, 67278 + ... + 67903.

It is an arithmetic number, because the mean of its divisors is an integer number (10611787).

Almost surely, 2^42311653 is an apocalyptic number.

It is an amenable number.

42311653 is a deficient number, since it is larger than the sum of its proper divisors (135495).

42311653 is a wasteful number, since it uses less digits than its factorization.

42311653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135494.

The product of its digits is 2160, while the sum is 25.

The square root of 42311653 is about 6504.7408095942. The cubic root of 42311653 is about 348.4603197385.

Adding to 42311653 its reverse (35611324), we get a palindrome (77922977).

The spelling of 42311653 in words is "forty-two million, three hundred eleven thousand, six hundred fifty-three".