42812951 has 4 divisors (see below), whose sum is σ = 42923400. Its totient is φ = 42702504.

The previous prime is 42812941. The next prime is 42812969. The reversal of 42812951 is 15921824.

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

It is a cyclic number.

It is not a de Polignac number, because 42812951 - 2¹⁰ = 42811927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42812921) 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, 54641 + ... + 55418.

It is an arithmetic number, because the mean of its divisors is an integer number (10730850).

Almost surely, 2^42812951 is an apocalyptic number.

42812951 is a deficient number, since it is larger than the sum of its proper divisors (110449).

42812951 is a wasteful number, since it uses less digits than its factorization.

42812951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110448.

The product of its digits is 5760, while the sum is 32.

The square root of 42812951 is about 6543.1606277089. The cubic root of 42812951 is about 349.8310776689.

The spelling of 42812951 in words is "forty-two million, eight hundred twelve thousand, nine hundred fifty-one".