203124542 has 8 divisors (see below), whose sum is σ = 304932600. Its totient is φ = 101480344.

The previous prime is 203124541. The next prime is 203124547. The reversal of 203124542 is 245421302.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203124541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37817 + ... + 42852.

It is an arithmetic number, because the mean of its divisors is an integer number (38116575).

Almost surely, 2^203124542 is an apocalyptic number.

203124542 is a deficient number, since it is larger than the sum of its proper divisors (101808058).

203124542 is a wasteful number, since it uses less digits than its factorization.

203124542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81930.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 203124542 is about 14252.1767460273. The cubic root of 203124542 is about 587.8332301201.

Adding to 203124542 its reverse (245421302), we get a palindrome (448545844).

The spelling of 203124542 in words is "two hundred three million, one hundred twenty-four thousand, five hundred forty-two".