145670 has 16 divisors (see below), whose sum is σ = 299808. Its totient is φ = 49920.

The previous prime is 145661. The next prime is 145679. The reversal of 145670 is 76541.

It is an interprime number because it is at equal distance from previous prime (145661) and next prime (145679).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145679) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 971 + ... + 1110.

It is an arithmetic number, because the mean of its divisors is an integer number (18738).

2¹⁴⁵⁶⁷⁰ is an apocalyptic number.

145670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145670 is an abundant number, since it is smaller than the sum of its proper divisors (154138).

It is a weird number, because it is abundant, but not a pseudoperfect number.

145670 is a wasteful number, since it uses less digits than its factorization.

145670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 145670 is about 381.6673944680. The cubic root of 145670 is about 52.6166717430.

The spelling of 145670 in words is "one hundred forty-five thousand, six hundred seventy".