102432641 has 4 divisors (see below), whose sum is σ = 103372500. Its totient is φ = 101492784.

The previous prime is 102432607. The next prime is 102432653. The reversal of 102432641 is 146234201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146234201 = 4909 ⋅29789.

It can be written as a sum of positive squares in 2 ways, for example, as 79584241 + 22848400 = 8921^2 + 4780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102432641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102432601) 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, 469766 + ... + 469983.

It is an arithmetic number, because the mean of its divisors is an integer number (25843125).

Almost surely, 2^102432641 is an apocalyptic number.

It is an amenable number.

102432641 is a deficient number, since it is larger than the sum of its proper divisors (939859).

102432641 is an equidigital number, since it uses as much as digits as its factorization.

102432641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939858.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 102432641 is about 10120.9011950518. The cubic root of 102432641 is about 467.8925426576.

Adding to 102432641 its reverse (146234201), we get a palindrome (248666842).

The spelling of 102432641 in words is "one hundred two million, four hundred thirty-two thousand, six hundred forty-one".