102552641 has 4 divisors (see below), whose sum is σ = 105324372. Its totient is φ = 99780912.

The previous prime is 102552631. The next prime is 102552647. The reversal of 102552641 is 146255201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146255201 = 229 ⋅638669.

It can be written as a sum of positive squares in 2 ways, for example, as 83192641 + 19360000 = 9121^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102552641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102552641.

It is not an unprimeable number, because it can be changed into a prime (102552647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385810 + ... + 1385883.

It is an arithmetic number, because the mean of its divisors is an integer number (26331093).

Almost surely, 2^102552641 is an apocalyptic number.

It is an amenable number.

102552641 is a deficient number, since it is larger than the sum of its proper divisors (2771731).

102552641 is an equidigital number, since it uses as much as digits as its factorization.

102552641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771730.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 102552641 is about 10126.8277856395. The cubic root of 102552641 is about 468.0751836379.

The spelling of 102552641 in words is "one hundred two million, five hundred fifty-two thousand, six hundred forty-one".