102140315 has 4 divisors (see below), whose sum is σ = 122568384. Its totient is φ = 81712248.

The previous prime is 102140299. The next prime is 102140317. The reversal of 102140315 is 513041201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102140315 - 2⁴ = 102140299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102140293 and 102140302.

It is not an unprimeable number, because it can be changed into a prime (102140317) 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 in 3 ways as a sum of consecutive naturals, for example, 10214027 + ... + 10214036.

It is an arithmetic number, because the mean of its divisors is an integer number (30642096).

Almost surely, 2^102140315 is an apocalyptic number.

102140315 is a deficient number, since it is larger than the sum of its proper divisors (20428069).

102140315 is an equidigital number, since it uses as much as digits as its factorization.

102140315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20428068.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102140315 is about 10106.4491786186. The cubic root of 102140315 is about 467.4470223171.

Adding to 102140315 its reverse (513041201), we get a palindrome (615181516).

The spelling of 102140315 in words is "one hundred two million, one hundred forty thousand, three hundred fifteen".