542142257 has 8 divisors (see below), whose sum is σ = 604245600. Its totient is φ = 483395904.

The previous prime is 542142239. The next prime is 542142283. The reversal of 542142257 is 752241245.

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

It is a cyclic number.

It is not a de Polignac number, because 542142257 - 2⁸ = 542142001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542142217) 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, 838907 + ... + 839552.

It is an arithmetic number, because the mean of its divisors is an integer number (75530700).

Almost surely, 2^542142257 is an apocalyptic number.

It is an amenable number.

542142257 is a deficient number, since it is larger than the sum of its proper divisors (62103343).

542142257 is a wasteful number, since it uses less digits than its factorization.

542142257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678495.

The product of its digits is 22400, while the sum is 32.

The square root of 542142257 is about 23283.9484838805. The cubic root of 542142257 is about 815.4007122793.

The spelling of 542142257 in words is "five hundred forty-two million, one hundred forty-two thousand, two hundred fifty-seven".