102533042 has 4 divisors (see below), whose sum is σ = 153799566. Its totient is φ = 51266520.

The previous prime is 102533033. The next prime is 102533047. The reversal of 102533042 is 240335201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240335201 = 8123 ⋅29587.

It can be written as a sum of positive squares in only one way, i.e., 101022601 + 1510441 = 10051^2 + 1229^2 .

It is not an unprimeable number, because it can be changed into a prime (102533047) 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 as a sum of consecutive naturals, namely, 25633259 + ... + 25633262.

Almost surely, 2^102533042 is an apocalyptic number.

102533042 is a deficient number, since it is larger than the sum of its proper divisors (51266524).

102533042 is an equidigital number, since it uses as much as digits as its factorization.

102533042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51266523.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 102533042 is about 10125.8600622367. The cubic root of 102533042 is about 468.0453635381.

Adding to 102533042 its reverse (240335201), we get a palindrome (342868243).

The spelling of 102533042 in words is "one hundred two million, five hundred thirty-three thousand, forty-two".