102001456 has 10 divisors (see below), whose sum is σ = 197627852. Its totient is φ = 51000720.

The previous prime is 102001453. The next prime is 102001477. The reversal of 102001456 is 654100201.

It is a super-2 number, since 2×102001456² = 20808594052239872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102001453) 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 as a sum of consecutive naturals, namely, 3187530 + ... + 3187561.

Almost surely, 2^102001456 is an apocalyptic number.

102001456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102001456 is a deficient number, since it is larger than the sum of its proper divisors (95626396).

102001456 is an equidigital number, since it uses as much as digits as its factorization.

102001456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375099 (or 6375093 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102001456 is about 10099.5770208460. The cubic root of 102001456 is about 467.2350959984.

Adding to 102001456 its reverse (654100201), we get a palindrome (756101657).

The spelling of 102001456 in words is "one hundred two million, one thousand, four hundred fifty-six".