145645836 has 36 divisors (see below), whose sum is σ = 395326008. Its totient is φ = 41612928.

The previous prime is 145645831. The next prime is 145645837. The reversal of 145645836 is 638546541.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (145645831) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 123261 + ... + 124436.

It is an arithmetic number, because the mean of its divisors is an integer number (10981278).

Almost surely, 2^145645836 is an apocalyptic number.

It is an amenable number.

145645836 is an abundant number, since it is smaller than the sum of its proper divisors (249680172).

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

145645836 is a wasteful number, since it uses less digits than its factorization.

145645836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247718 (or 247709 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 145645836 is about 12068.3816644984. The cubic root of 145645836 is about 526.1376219963.

The spelling of 145645836 in words is "one hundred forty-five million, six hundred forty-five thousand, eight hundred thirty-six".