145670145 has 16 divisors (see below), whose sum is σ = 233920320. Its totient is φ = 77408064.

The previous prime is 145670141. The next prime is 145670149. The reversal of 145670145 is 541076541.

It is an interprime number because it is at equal distance from previous prime (145670141) and next prime (145670149).

It is not a de Polignac number, because 145670145 - 2² = 145670141 is a prime.

It is a super-2 number, since 2×145670145² = 42439582288642050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (145670141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13375 + ... + 21684.

It is an arithmetic number, because the mean of its divisors is an integer number (14620020).

It is a Proth number, since it is equal to 8891 ⋅ 2¹⁴ + 1 and 8891 < 2¹⁴.

Almost surely, 2^145670145 is an apocalyptic number.

145670145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145670145 is a deficient number, since it is larger than the sum of its proper divisors (88250175).

145670145 is a wasteful number, since it uses less digits than its factorization.

145670145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35344.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 145670145 is about 12069.3887583423. The cubic root of 145670145 is about 526.1668920126.

The spelling of 145670145 in words is "one hundred forty-five million, six hundred seventy thousand, one hundred forty-five".