102265649 has 2 divisors, whose sum is σ = 102265650. Its totient is φ = 102265648.

The previous prime is 102265643. The next prime is 102265661. The reversal of 102265649 is 946562201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92025649 + 10240000 = 9593^2 + 3200^2 .

It is a cyclic number.

It is not a de Polignac number, because 102265649 - 2⁴ = 102265633 is a prime.

It is not a weakly prime, because it can be changed into another prime (102265643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51132824 + 51132825.

It is an arithmetic number, because the mean of its divisors is an integer number (51132825).

Almost surely, 2^102265649 is an apocalyptic number.

It is an amenable number.

102265649 is a deficient number, since it is larger than the sum of its proper divisors (1).

102265649 is an equidigital number, since it uses as much as digits as its factorization.

102265649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 102265649 is about 10112.6479717233. The cubic root of 102265649 is about 467.6381419477.

The spelling of 102265649 in words is "one hundred two million, two hundred sixty-five thousand, six hundred forty-nine".