42031653 has 4 divisors (see below), whose sum is σ = 56042208. Its totient is φ = 28021100.

The previous prime is 42031631. The next prime is 42031657. The reversal of 42031653 is 35613024.

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 42031653 - 2⁵ = 42031621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031657) 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, 7005273 + ... + 7005278.

It is an arithmetic number, because the mean of its divisors is an integer number (14010552).

Almost surely, 2^42031653 is an apocalyptic number.

It is an amenable number.

42031653 is a deficient number, since it is larger than the sum of its proper divisors (14010555).

42031653 is a wasteful number, since it uses less digits than its factorization.

42031653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14010554.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 42031653 is about 6483.1823204349. The cubic root of 42031653 is about 347.6899653162.

Adding to 42031653 its reverse (35613024), we get a palindrome (77644677).

The spelling of 42031653 in words is "forty-two million, thirty-one thousand, six hundred fifty-three".