542313247 has 4 divisors (see below), whose sum is σ = 619786576. Its totient is φ = 464839920.

The previous prime is 542313229. The next prime is 542313263. The reversal of 542313247 is 742313245.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542313247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542313047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38736654 + ... + 38736667.

It is an arithmetic number, because the mean of its divisors is an integer number (154946644).

Almost surely, 2^542313247 is an apocalyptic number.

542313247 is a deficient number, since it is larger than the sum of its proper divisors (77473329).

542313247 is an equidigital number, since it uses as much as digits as its factorization.

542313247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77473328.

The product of its digits is 20160, while the sum is 31.

The square root of 542313247 is about 23287.6200372644. The cubic root of 542313247 is about 815.4864282272.

The spelling of 542313247 in words is "five hundred forty-two million, three hundred thirteen thousand, two hundred forty-seven".