102146452 has 12 divisors (see below), whose sum is σ = 181687156. Its totient is φ = 50235840.

The previous prime is 102146441. The next prime is 102146459. The reversal of 102146452 is 254641201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48944016 + 53202436 = 6996^2 + 7294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102146459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209073 + ... + 209560.

Almost surely, 2^102146452 is an apocalyptic number.

It is an amenable number.

102146452 is a deficient number, since it is larger than the sum of its proper divisors (79540704).

102146452 is a wasteful number, since it uses less digits than its factorization.

102146452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418698 (or 418696 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 102146452 is about 10106.7527920693. The cubic root of 102146452 is about 467.4563841605.

Adding to 102146452 its reverse (254641201), we get a palindrome (356787653).

The spelling of 102146452 in words is "one hundred two million, one hundred forty-six thousand, four hundred fifty-two".