102452144 has 20 divisors (see below), whose sum is σ = 203118696. Its totient is φ = 50034432.

The previous prime is 102452131. The next prime is 102452173. The reversal of 102452144 is 441254201.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 73769 + ... + 75144.

Almost surely, 2^102452144 is an apocalyptic number.

It is an amenable number.

102452144 is a deficient number, since it is larger than the sum of its proper divisors (100666552).

102452144 is a wasteful number, since it uses less digits than its factorization.

102452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148964 (or 148958 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 102452144 is about 10121.8646503498. The cubic root of 102452144 is about 467.9222360870.

The spelling of 102452144 in words is "one hundred two million, four hundred fifty-two thousand, one hundred forty-four".