145674681 has 8 divisors (see below), whose sum is σ = 198970464. Its totient is φ = 94747680.

The previous prime is 145674679. The next prime is 145674689. The reversal of 145674681 is 186476541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145674681 - 2¹ = 145674679 is a prime.

It is a super-2 number, since 2×145674681² = 42442225368903522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145674689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592051 + ... + 592296.

It is an arithmetic number, because the mean of its divisors is an integer number (24871308).

Almost surely, 2^145674681 is an apocalyptic number.

It is an amenable number.

145674681 is a deficient number, since it is larger than the sum of its proper divisors (53295783).

145674681 is a wasteful number, since it uses less digits than its factorization.

145674681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184391.

The product of its digits is 161280, while the sum is 42.

The square root of 145674681 is about 12069.5766702896. The cubic root of 145674681 is about 526.1723533656.

The spelling of 145674681 in words is "one hundred forty-five million, six hundred seventy-four thousand, six hundred eighty-one".