102431473 has 4 divisors (see below), whose sum is σ = 103445748. Its totient is φ = 101417200.

The previous prime is 102431467. The next prime is 102431491. The reversal of 102431473 is 374134201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374134201 = 7 ⋅53447743.

It can be written as a sum of positive squares in 2 ways, for example, as 96589584 + 5841889 = 9828^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 102431473 - 2²⁵ = 68877041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102431773) 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, 506986 + ... + 507187.

It is an arithmetic number, because the mean of its divisors is an integer number (25861437).

Almost surely, 2^102431473 is an apocalyptic number.

It is an amenable number.

102431473 is a deficient number, since it is larger than the sum of its proper divisors (1014275).

102431473 is a wasteful number, since it uses less digits than its factorization.

102431473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014274.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 102431473 is about 10120.8434925158. The cubic root of 102431473 is about 467.8907642513.

Adding to 102431473 its reverse (374134201), we get a palindrome (476565674).

The spelling of 102431473 in words is "one hundred two million, four hundred thirty-one thousand, four hundred seventy-three".