102252769 has 4 divisors (see below), whose sum is σ = 102425796. Its totient is φ = 102079744.

The previous prime is 102252727. The next prime is 102252803. The reversal of 102252769 is 967252201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967252201 = 233 ⋅4151297.

It can be written as a sum of positive squares in 2 ways, for example, as 62726400 + 39526369 = 7920^2 + 6287^2 .

It is a cyclic number.

It is not a de Polignac number, because 102252769 - 2⁹ = 102252257 is a prime.

It is a super-2 number, since 2×102252769² = 20911257536334722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102250769) 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, 85624 + ... + 86809.

It is an arithmetic number, because the mean of its divisors is an integer number (25606449).

Almost surely, 2^102252769 is an apocalyptic number.

It is an amenable number.

102252769 is a deficient number, since it is larger than the sum of its proper divisors (173027).

102252769 is an equidigital number, since it uses as much as digits as its factorization.

102252769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173026.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 102252769 is about 10112.0111253894. The cubic root of 102252769 is about 467.6185086619.

The spelling of 102252769 in words is "one hundred two million, two hundred fifty-two thousand, seven hundred sixty-nine".