145506306 has 32 divisors (see below), whose sum is σ = 323466048. Its totient is φ = 43259840.

The previous prime is 145506299. The next prime is 145506323. The reversal of 145506306 is 603605541.

145506306 = 1163² + 1164² + ... + 1261².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17301 + ... + 24296.

It is an arithmetic number, because the mean of its divisors is an integer number (10108314).

Almost surely, 2^145506306 is an apocalyptic number.

145506306 is an abundant number, since it is smaller than the sum of its proper divisors (177959742).

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

145506306 is a wasteful number, since it uses less digits than its factorization.

145506306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41666.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 145506306 is about 12062.5994710925. The cubic root of 145506306 is about 525.9695534816.

The spelling of 145506306 in words is "one hundred forty-five million, five hundred six thousand, three hundred six".