145680026 has 16 divisors (see below), whose sum is σ = 226497480. Its totient is φ = 70217280.

The previous prime is 145680019. The next prime is 145680037. The reversal of 145680026 is 620086541.

It can be written as a sum of positive squares in 4 ways, for example, as 144120025 + 1560001 = 12005^2 + 1249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145679974 and 145680001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965 + ... + 17096.

Almost surely, 2^145680026 is an apocalyptic number.

145680026 is a deficient number, since it is larger than the sum of its proper divisors (80817454).

145680026 is a wasteful number, since it uses less digits than its factorization.

145680026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18209.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 145680026 is about 12069.7980927603. The cubic root of 145680026 is about 526.1787886107.

The spelling of 145680026 in words is "one hundred forty-five million, six hundred eighty thousand, twenty-six".