102748481 has 6 divisors (see below), whose sum is σ = 112938546. Its totient is φ = 93407600.

The previous prime is 102748469. The next prime is 102748483. The reversal of 102748481 is 184847201.

It can be written as a sum of positive squares in only one way, i.e., 89491600 + 13256881 = 9460^2 + 3641^2 .

It is not a de Polignac number, because 102748481 - 2⁶ = 102748417 is a prime.

It is a super-2 number, since 2×102748481² = 21114500695614722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102748483) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 424460 + ... + 424701.

It is an arithmetic number, because the mean of its divisors is an integer number (18823091).

Almost surely, 2^102748481 is an apocalyptic number.

102748481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102748481 is a deficient number, since it is larger than the sum of its proper divisors (10190065).

102748481 is an equidigital number, since it uses as much as digits as its factorization.

102748481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849183 (or 849172 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 102748481 is about 10136.4925393353. The cubic root of 102748481 is about 468.3729479654.

The spelling of 102748481 in words is "one hundred two million, seven hundred forty-eight thousand, four hundred eighty-one".