102264145 has 4 divisors (see below), whose sum is σ = 122716980. Its totient is φ = 81811312.

The previous prime is 102264143. The next prime is 102264193. The reversal of 102264145 is 541462201.

It is a happy number.

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 17918289 + 84345856 = 4233^2 + 9184^2 .

It is a cyclic number.

It is not a de Polignac number, because 102264145 - 2¹ = 102264143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102264143) 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, 10226410 + ... + 10226419.

It is an arithmetic number, because the mean of its divisors is an integer number (30679245).

Almost surely, 2^102264145 is an apocalyptic number.

It is an amenable number.

102264145 is a deficient number, since it is larger than the sum of its proper divisors (20452835).

102264145 is an equidigital number, since it uses as much as digits as its factorization.

102264145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20452834.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 102264145 is about 10112.5736091264. The cubic root of 102264145 is about 467.6358494503.

The spelling of 102264145 in words is "one hundred two million, two hundred sixty-four thousand, one hundred forty-five".