542100309 has 8 divisors (see below), whose sum is σ = 724363392. Its totient is φ = 360618720.

The previous prime is 542100287. The next prime is 542100323. The reversal of 542100309 is 903001245.

542100309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542100309 - 2²⁴ = 525323093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542100329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193752 + ... + 196529.

It is an arithmetic number, because the mean of its divisors is an integer number (90545424).

Almost surely, 2^542100309 is an apocalyptic number.

It is an amenable number.

542100309 is a deficient number, since it is larger than the sum of its proper divisors (182263083).

542100309 is a wasteful number, since it uses less digits than its factorization.

542100309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390747.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 542100309 is about 23283.0476742200. The cubic root of 542100309 is about 815.3796813224.

The spelling of 542100309 in words is "five hundred forty-two million, one hundred thousand, three hundred nine".