145864670 has 24 divisors (see below), whose sum is σ = 305423784. Its totient is φ = 50010576.

The previous prime is 145864669. The next prime is 145864679. The reversal of 145864670 is 76468541.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145864679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148352 + ... + 149331.

It is an arithmetic number, because the mean of its divisors is an integer number (12725991).

Almost surely, 2^145864670 is an apocalyptic number.

145864670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145864670 is an abundant number, since it is smaller than the sum of its proper divisors (159559114).

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

145864670 is a wasteful number, since it uses less digits than its factorization.

145864670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297704 (or 297697 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 145864670 is about 12077.4446800637. Note that the first 3 decimals coincide. The cubic root of 145864670 is about 526.4009987532.

The spelling of 145864670 in words is "one hundred forty-five million, eight hundred sixty-four thousand, six hundred seventy".