42651245 has 16 divisors (see below), whose sum is σ = 62993280. Its totient is φ = 26996544.

The previous prime is 42651233. The next prime is 42651253. The reversal of 42651245 is 54215624.

It is a cyclic number.

It is not a de Polignac number, because 42651245 - 2⁴ = 42651229 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46415 + ... + 47324.

It is an arithmetic number, because the mean of its divisors is an integer number (3937080).

Almost surely, 2^42651245 is an apocalyptic number.

It is an amenable number.

42651245 is a deficient number, since it is larger than the sum of its proper divisors (20342035).

42651245 is a wasteful number, since it uses less digits than its factorization.

42651245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93764.

The product of its digits is 9600, while the sum is 29.

The square root of 42651245 is about 6530.7920652858. The cubic root of 42651245 is about 349.3900806127.

Adding to 42651245 its reverse (54215624), we get a palindrome (96866869).

The spelling of 42651245 in words is "forty-two million, six hundred fifty-one thousand, two hundred forty-five".