102987953 has 2 divisors, whose sum is σ = 102987954. Its totient is φ = 102987952.

The previous prime is 102987931. The next prime is 102987971. The reversal of 102987953 is 359789201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74770609 + 28217344 = 8647^2 + 5312^2 .

It is an emirp because it is prime and its reverse (359789201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102987953 - 2⁸ = 102987697 is a prime.

It is not a weakly prime, because it can be changed into another prime (102987653) 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 as a sum of consecutive naturals, namely, 51493976 + 51493977.

It is an arithmetic number, because the mean of its divisors is an integer number (51493977).

Almost surely, 2^102987953 is an apocalyptic number.

It is an amenable number.

102987953 is a deficient number, since it is larger than the sum of its proper divisors (1).

102987953 is an equidigital number, since it uses as much as digits as its factorization.

102987953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 102987953 is about 10148.2980346460. The cubic root of 102987953 is about 468.7365386831.

The spelling of 102987953 in words is "one hundred two million, nine hundred eighty-seven thousand, nine hundred fifty-three".