102100953 has 4 divisors (see below), whose sum is σ = 136134608. Its totient is φ = 68067300.

The previous prime is 102100951. The next prime is 102100969. The reversal of 102100953 is 359001201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 102100953 - 2¹ = 102100951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102100951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17016823 + ... + 17016828.

It is an arithmetic number, because the mean of its divisors is an integer number (34033652).

Almost surely, 2^102100953 is an apocalyptic number.

It is an amenable number.

102100953 is a deficient number, since it is larger than the sum of its proper divisors (34033655).

102100953 is an equidigital number, since it uses as much as digits as its factorization.

102100953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34033654.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 102100953 is about 10104.5016205650. The cubic root of 102100953 is about 467.3869676306.

The spelling of 102100953 in words is "one hundred two million, one hundred thousand, nine hundred fifty-three".