102135073 has 4 divisors (see below), whose sum is σ = 102705840. Its totient is φ = 101564308.

The previous prime is 102135037. The next prime is 102135091. The reversal of 102135073 is 370531201.

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 a cyclic number.

It is not a de Polignac number, because 102135073 - 2²¹ = 100037921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102135023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285115 + ... + 285472.

It is an arithmetic number, because the mean of its divisors is an integer number (25676460).

Almost surely, 2^102135073 is an apocalyptic number.

It is an amenable number.

102135073 is a deficient number, since it is larger than the sum of its proper divisors (570767).

102135073 is an equidigital number, since it uses as much as digits as its factorization.

102135073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570766.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 102135073 is about 10106.1898359372. The cubic root of 102135073 is about 467.4390254772.

Adding to 102135073 its reverse (370531201), we get a palindrome (472666274).

The spelling of 102135073 in words is "one hundred two million, one hundred thirty-five thousand, seventy-three".