102645227 has 8 divisors (see below), whose sum is σ = 106268736. Its totient is φ = 99081792.

The previous prime is 102645211. The next prime is 102645229. The reversal of 102645227 is 722546201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102645227 - 2⁴ = 102645211 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 102645227.

It is not an unprimeable number, because it can be changed into a prime (102645229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11528 + ... + 18389.

It is an arithmetic number, because the mean of its divisors is an integer number (13283592).

Almost surely, 2^102645227 is an apocalyptic number.

102645227 is a deficient number, since it is larger than the sum of its proper divisors (3623509).

102645227 is an equidigital number, since it uses as much as digits as its factorization.

102645227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30037.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 102645227 is about 10131.3980772646. The cubic root of 102645227 is about 468.2160029390.

The spelling of 102645227 in words is "one hundred two million, six hundred forty-five thousand, two hundred twenty-seven".