542105254 has 4 divisors (see below), whose sum is σ = 813157884. Its totient is φ = 271052626.

The previous prime is 542105243. The next prime is 542105273. The reversal of 542105254 is 452501245.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135526312 + ... + 135526315.

It is an arithmetic number, because the mean of its divisors is an integer number (203289471).

Almost surely, 2^542105254 is an apocalyptic number.

542105254 is a deficient number, since it is larger than the sum of its proper divisors (271052630).

542105254 is a wasteful number, since it uses less digits than its factorization.

542105254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271052629.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 542105254 is about 23283.1538671203. The cubic root of 542105254 is about 815.3821605932.

Adding to 542105254 its reverse (452501245), we get a palindrome (994606499).

The spelling of 542105254 in words is "five hundred forty-two million, one hundred five thousand, two hundred fifty-four".