102460021 has 4 divisors (see below), whose sum is σ = 102507372. Its totient is φ = 102412672.

The previous prime is 102460019. The next prime is 102460063. The reversal of 102460021 is 120064201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 76755121 + 25704900 = 8761^2 + 5070^2 .

It is a cyclic number.

It is not a de Polignac number, because 102460021 - 2¹ = 102460019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102459977 and 102460004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102460081) 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, 20266 + ... + 24811.

It is an arithmetic number, because the mean of its divisors is an integer number (25626843).

Almost surely, 2^102460021 is an apocalyptic number.

It is an amenable number.

102460021 is a deficient number, since it is larger than the sum of its proper divisors (47351).

102460021 is an equidigital number, since it uses as much as digits as its factorization.

102460021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47350.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102460021 is about 10122.2537510181. The cubic root of 102460021 is about 467.9342277964.

The spelling of 102460021 in words is "one hundred two million, four hundred sixty thousand, twenty-one".