102945218 has 8 divisors (see below), whose sum is σ = 154465212. Its totient is φ = 51456816.

The previous prime is 102945169. The next prime is 102945223. The reversal of 102945218 is 812549201.

It can be written as a sum of positive squares in 2 ways, for example, as 87366409 + 15578809 = 9347^2 + 3947^2 .

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

It is an unprimeable number.

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, 3596 + ... + 14792.

Almost surely, 2^102945218 is an apocalyptic number.

102945218 is a deficient number, since it is larger than the sum of its proper divisors (51519994).

102945218 is a wasteful number, since it uses less digits than its factorization.

102945218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 102945218 is about 10146.1922907069. The cubic root of 102945218 is about 468.6716954118.

The spelling of 102945218 in words is "one hundred two million, nine hundred forty-five thousand, two hundred eighteen".