102074445 has 32 divisors (see below), whose sum is σ = 197965440. Its totient is φ = 49489920.

The previous prime is 102074431. The next prime is 102074447. The reversal of 102074445 is 544470201.

102074445 is a `hidden beast` number, since 10 + 207 + 4 + 445 = 666.

It is not a de Polignac number, because 102074445 - 2⁴ = 102074429 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102074447) 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 in 31 ways as a sum of consecutive naturals, for example, 32884 + ... + 35853.

It is an arithmetic number, because the mean of its divisors is an integer number (6186420).

Almost surely, 2^102074445 is an apocalyptic number.

102074445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102074445 is a deficient number, since it is larger than the sum of its proper divisors (95890995).

102074445 is a wasteful number, since it uses less digits than its factorization.

102074445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68762 (or 68756 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 102074445 is about 10103.1898428170. The cubic root of 102074445 is about 467.3465156213.

The spelling of 102074445 in words is "one hundred two million, seventy-four thousand, four hundred forty-five".