145444682 has 4 divisors (see below), whose sum is σ = 218167026. Its totient is φ = 72722340.

The previous prime is 145444631. The next prime is 145444687. The reversal of 145444682 is 286444541.

145444682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 286444541 = 5867 ⋅48823.

It can be written as a sum of positive squares in only one way, i.e., 138321121 + 7123561 = 11761^2 + 2669^2 .

It is a super-2 number, since 2×145444682² = 42308311044162248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145444687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36361169 + ... + 36361172.

Almost surely, 2^145444682 is an apocalyptic number.

145444682 is a deficient number, since it is larger than the sum of its proper divisors (72722344).

145444682 is an equidigital number, since it uses as much as digits as its factorization.

145444682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72722343.

The product of its digits is 122880, while the sum is 38.

The square root of 145444682 is about 12060.0448589547. The cubic root of 145444682 is about 525.8952911228.

The spelling of 145444682 in words is "one hundred forty-five million, four hundred forty-four thousand, six hundred eighty-two".