145450818 has 12 divisors (see below), whose sum is σ = 315143478. Its totient is φ = 48483600.

The previous prime is 145450817. The next prime is 145450841. The reversal of 145450818 is 818054541.

145450818 is a `hidden beast` number, since 145 + 4 + 508 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 89245809 + 56205009 = 9447^2 + 7497^2 .

It is not an unprimeable number, because it can be changed into a prime (145450817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4040283 + ... + 4040318.

Almost surely, 2^145450818 is an apocalyptic number.

145450818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145450818 is an abundant number, since it is smaller than the sum of its proper divisors (169692660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145450818 is a wasteful number, since it uses less digits than its factorization.

145450818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080609 (or 8080606 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 145450818 is about 12060.2992500186. The cubic root of 145450818 is about 525.9026864845.

The spelling of 145450818 in words is "one hundred forty-five million, four hundred fifty thousand, eight hundred eighteen".