145712680 has 16 divisors (see below), whose sum is σ = 327853620. Its totient is φ = 58285056.

The previous prime is 145712663. The next prime is 145712689. The reversal of 145712680 is 86217541.

It can be written as a sum of positive squares in 2 ways, for example, as 144913444 + 799236 = 12038^2 + 894^2 .

It is a super-2 number, since 2×145712680² = 42464370225564800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145712689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821369 + ... + 1821448.

Almost surely, 2^145712680 is an apocalyptic number.

145712680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145712680 is an abundant number, since it is smaller than the sum of its proper divisors (182140940).

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

145712680 is a wasteful number, since it uses less digits than its factorization.

145712680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642828 (or 3642824 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 145712680 is about 12071.1507322210. The cubic root of 145712680 is about 526.2180997847.

The spelling of 145712680 in words is "one hundred forty-five million, seven hundred twelve thousand, six hundred eighty".