102259049 has 12 divisors (see below), whose sum is σ = 106850772. Its totient is φ = 97850880.

The previous prime is 102259037. The next prime is 102259067. The reversal of 102259049 is 940952201.

It can be written as a sum of positive squares in 2 ways, for example, as 37295449 + 64963600 = 6107^2 + 8060^2 .

It is not a de Polignac number, because 102259049 - 2⁴ = 102259033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102259649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92669 + ... + 93765.

It is an arithmetic number, because the mean of its divisors is an integer number (8904231).

Almost surely, 2^102259049 is an apocalyptic number.

It is an amenable number.

102259049 is a deficient number, since it is larger than the sum of its proper divisors (4591723).

102259049 is an equidigital number, since it uses as much as digits as its factorization.

102259049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 102259049 is about 10112.3216424321. The cubic root of 102259049 is about 467.6280816190.

The spelling of 102259049 in words is "one hundred two million, two hundred fifty-nine thousand, forty-nine".