102140473 has 4 divisors (see below), whose sum is σ = 102190068. Its totient is φ = 102090880.

The previous prime is 102140459. The next prime is 102140483. The reversal of 102140473 is 374041201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374041201 = 19 ⋅19686379.

It can be written as a sum of positive squares in 2 ways, for example, as 21086464 + 81054009 = 4592^2 + 9003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102140473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102140453) 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, 21568 + ... + 25873.

It is an arithmetic number, because the mean of its divisors is an integer number (25547517).

Almost surely, 2^102140473 is an apocalyptic number.

It is an amenable number.

102140473 is a deficient number, since it is larger than the sum of its proper divisors (49595).

102140473 is an equidigital number, since it uses as much as digits as its factorization.

102140473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49594.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 102140473 is about 10106.4569954065. The cubic root of 102140473 is about 467.4472633469.

Adding to 102140473 its reverse (374041201), we get a palindrome (476181674).

The spelling of 102140473 in words is "one hundred two million, one hundred forty thousand, four hundred seventy-three".