102542826 has 16 divisors (see below), whose sum is σ = 208562400. Its totient is φ = 33601488.

The previous prime is 102542821. The next prime is 102542833. The reversal of 102542826 is 628245201.

It is a junction number, because it is equal to n+sod(n) for n = 102542793 and 102542802.

It is not an unprimeable number, because it can be changed into a prime (102542821) 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, 144481 + ... + 145188.

It is an arithmetic number, because the mean of its divisors is an integer number (13035150).

Almost surely, 2^102542826 is an apocalyptic number.

102542826 is an abundant number, since it is smaller than the sum of its proper divisors (106019574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102542826 is a wasteful number, since it uses less digits than its factorization.

102542826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289733.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 102542826 is about 10126.3431701676. The cubic root of 102542826 is about 468.0602504795.

The spelling of 102542826 in words is "one hundred two million, five hundred forty-two thousand, eight hundred twenty-six".