42154265 has 16 divisors (see below), whose sum is σ = 52455936. Its totient is φ = 32520240.

The previous prime is 42154243. The next prime is 42154267. The reversal of 42154265 is 56245124.

It is not a de Polignac number, because 42154265 - 2¹⁸ = 41892121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42154267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148814 + ... + 149096.

It is an arithmetic number, because the mean of its divisors is an integer number (3278496).

Almost surely, 2^42154265 is an apocalyptic number.

It is an amenable number.

42154265 is a deficient number, since it is larger than the sum of its proper divisors (10301671).

42154265 is an frugal number, since it uses more digits than its factorization.

42154265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 319 counting only the distinct ones).

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

The square root of 42154265 is about 6492.6315928135. The cubic root of 42154265 is about 348.0277232725.

Adding to 42154265 its reverse (56245124), we get a palindrome (98399389).

The spelling of 42154265 in words is "forty-two million, one hundred fifty-four thousand, two hundred sixty-five".