145730147 has 4 divisors (see below), whose sum is σ = 145810896. Its totient is φ = 145649400.

The previous prime is 145730131. The next prime is 145730197. The reversal of 145730147 is 741037541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741037541 = 11437 ⋅64793.

It is a cyclic number.

It is not a de Polignac number, because 145730147 - 2⁴ = 145730131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145730107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37604 + ... + 41297.

It is an arithmetic number, because the mean of its divisors is an integer number (36452724).

Almost surely, 2^145730147 is an apocalyptic number.

145730147 is a deficient number, since it is larger than the sum of its proper divisors (80749).

145730147 is an equidigital number, since it uses as much as digits as its factorization.

145730147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80748.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 145730147 is about 12071.8742123997. The cubic root of 145730147 is about 526.2391253726.

Adding to 145730147 its reverse (741037541), we get a palindrome (886767688).

The spelling of 145730147 in words is "one hundred forty-five million, seven hundred thirty thousand, one hundred forty-seven".