102542542 has 8 divisors (see below), whose sum is σ = 153996696. Its totient is φ = 51210312.

The previous prime is 102542537. The next prime is 102542543. The reversal of 102542542 is 245245201.

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 (102542543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28348 + ... + 31759.

It is an arithmetic number, because the mean of its divisors is an integer number (19249587).

Almost surely, 2^102542542 is an apocalyptic number.

102542542 is a deficient number, since it is larger than the sum of its proper divisors (51454154).

102542542 is an equidigital number, since it uses as much as digits as its factorization.

102542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60962.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 102542542 is about 10126.3291473268. The cubic root of 102542542 is about 468.0598183699.

Adding to 102542542 its reverse (245245201), we get a palindrome (347787743).

The spelling of 102542542 in words is "one hundred two million, five hundred forty-two thousand, five hundred forty-two".