145147082 has 4 divisors (see below), whose sum is σ = 217720626. Its totient is φ = 72573540.

The previous prime is 145147081. The next prime is 145147087. The reversal of 145147082 is 280741541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280741541 = 191 ⋅1469851.

It can be written as a sum of positive squares in only one way, i.e., 144696841 + 450241 = 12029^2 + 671^2 .

It is a super-2 number, since 2×145147082² = 42135350826229448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145147081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36286769 + ... + 36286772.

Almost surely, 2^145147082 is an apocalyptic number.

145147082 is a deficient number, since it is larger than the sum of its proper divisors (72573544).

145147082 is an equidigital number, since it uses as much as digits as its factorization.

145147082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72573543.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 145147082 is about 12047.7002784764. The cubic root of 145147082 is about 525.5363612932.

The spelling of 145147082 in words is "one hundred forty-five million, one hundred forty-seven thousand, eighty-two".