102974449 has 4 divisors (see below), whose sum is σ = 103994100. Its totient is φ = 101954800.

The previous prime is 102974419. The next prime is 102974479. The reversal of 102974449 is 944479201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944479201 = 31 ⋅30467071.

It is an interprime number because it is at equal distance from previous prime (102974419) and next prime (102974479).

It can be written as a sum of positive squares in 2 ways, for example, as 91872225 + 11102224 = 9585^2 + 3332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102974449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102974419) 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 3 ways as a sum of consecutive naturals, for example, 509674 + ... + 509875.

It is an arithmetic number, because the mean of its divisors is an integer number (25998525).

Almost surely, 2^102974449 is an apocalyptic number.

It is an amenable number.

102974449 is a deficient number, since it is larger than the sum of its proper divisors (1019651).

102974449 is a wasteful number, since it uses less digits than its factorization.

102974449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019650.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 102974449 is about 10147.6326795958. The cubic root of 102974449 is about 468.7160505427.

The spelling of 102974449 in words is "one hundred two million, nine hundred seventy-four thousand, four hundred forty-nine".