145284645 has 16 divisors (see below), whose sum is σ = 253588032. Its totient is φ = 70440960.

The previous prime is 145284641. The next prime is 145284653. The reversal of 145284645 is 546482541.

It is a happy number.

It is not a de Polignac number, because 145284645 - 2² = 145284641 is a prime.

It is a super-2 number, since 2×145284645² = 42215256145552050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145284641) 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 15 ways as a sum of consecutive naturals, for example, 440092 + ... + 440421.

It is an arithmetic number, because the mean of its divisors is an integer number (15849252).

Almost surely, 2^145284645 is an apocalyptic number.

145284645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145284645 is a deficient number, since it is larger than the sum of its proper divisors (108303387).

145284645 is a wasteful number, since it uses less digits than its factorization.

145284645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880532.

The product of its digits is 153600, while the sum is 39.

The square root of 145284645 is about 12053.4080242892. The cubic root of 145284645 is about 525.7023343887.

The spelling of 145284645 in words is "one hundred forty-five million, two hundred eighty-four thousand, six hundred forty-five".