102454443 has 128 divisors (see below), whose sum is σ = 204288000. Its totient is φ = 50295168.

The previous prime is 102454439. The next prime is 102454463. The reversal of 102454443 is 344454201.

It is a happy number.

It is not a de Polignac number, because 102454443 - 2² = 102454439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102454463) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2769021 + ... + 2769057.

It is an arithmetic number, because the mean of its divisors is an integer number (1596000).

Almost surely, 2^102454443 is an apocalyptic number.

102454443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102454443 is a deficient number, since it is larger than the sum of its proper divisors (101833557).

102454443 is a wasteful number, since it uses less digits than its factorization.

102454443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 102454443 is about 10121.9782157442. The cubic root of 102454443 is about 467.9257360794.

The spelling of 102454443 in words is "one hundred two million, four hundred fifty-four thousand, four hundred forty-three".