42054154 has 4 divisors (see below), whose sum is σ = 63081234. Its totient is φ = 21027076.

The previous prime is 42054139. The next prime is 42054157. The reversal of 42054154 is 45145024.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 31640625 + 10413529 = 5625^2 + 3227^2 .

It is not an unprimeable number, because it can be changed into a prime (42054157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10513537 + ... + 10513540.

Almost surely, 2^42054154 is an apocalyptic number.

42054154 is a deficient number, since it is larger than the sum of its proper divisors (21027080).

42054154 is a wasteful number, since it uses less digits than its factorization.

42054154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21027079.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 42054154 is about 6484.9174243008. The cubic root of 42054154 is about 347.7519977427.

Adding to 42054154 its reverse (45145024), we get a palindrome (87199178).

The spelling of 42054154 in words is "forty-two million, fifty-four thousand, one hundred fifty-four".