102451044 has 48 divisors (see below), whose sum is σ = 254016000. Its totient is φ = 32027136.

The previous prime is 102451031. The next prime is 102451051. The reversal of 102451044 is 440154201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102451044.

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 15 ways as a sum of consecutive naturals, for example, 70477 + ... + 71915.

It is an arithmetic number, because the mean of its divisors is an integer number (5292000).

Almost surely, 2^102451044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102451044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127008000).

102451044 is an abundant number, since it is smaller than the sum of its proper divisors (151564956).

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

102451044 is a wasteful number, since it uses less digits than its factorization.

102451044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 102451044 is about 10121.8103123898. The cubic root of 102451044 is about 467.9205614310.

The spelling of 102451044 in words is "one hundred two million, four hundred fifty-one thousand, forty-four".