102449397 has 16 divisors (see below), whose sum is σ = 138723840. Its totient is φ = 67245552.

The previous prime is 102449357. The next prime is 102449407. The reversal of 102449397 is 793944201.

It is not a de Polignac number, because 102449397 - 2¹⁶ = 102383861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102449357) 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 15 ways as a sum of consecutive naturals, for example, 56568 + ... + 58350.

It is an arithmetic number, because the mean of its divisors is an integer number (8670240).

Almost surely, 2^102449397 is an apocalyptic number.

It is an amenable number.

102449397 is a deficient number, since it is larger than the sum of its proper divisors (36274443).

102449397 is a wasteful number, since it uses less digits than its factorization.

102449397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 102449397 is about 10121.7289530989. The cubic root of 102449397 is about 467.9180539918.

The spelling of 102449397 in words is "one hundred two million, four hundred forty-nine thousand, three hundred ninety-seven".