542105345 has 4 divisors (see below), whose sum is σ = 650526420. Its totient is φ = 433684272.

The previous prime is 542105341. The next prime is 542105363. The reversal of 542105345 is 543501245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 224160784 + 317944561 = 14972^2 + 17831^2 .

It is a cyclic number.

It is not a de Polignac number, because 542105345 - 2² = 542105341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542105341) 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, 54210530 + ... + 54210539.

It is an arithmetic number, because the mean of its divisors is an integer number (162631605).

Almost surely, 2^542105345 is an apocalyptic number.

It is an amenable number.

542105345 is a deficient number, since it is larger than the sum of its proper divisors (108421075).

542105345 is a wasteful number, since it uses less digits than its factorization.

542105345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108421074.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 542105345 is about 23283.1558213228. The cubic root of 542105345 is about 815.3822062176.

The spelling of 542105345 in words is "five hundred forty-two million, one hundred five thousand, three hundred forty-five".