145630307 has 4 divisors (see below), whose sum is σ = 153295080. Its totient is φ = 137965536.

The previous prime is 145630297. The next prime is 145630327. The reversal of 145630307 is 703036541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703036541 = 43 ⋅16349687.

It is not a de Polignac number, because 145630307 - 2¹⁰ = 145629283 is a prime.

It is a super-3 number, since 3×145630307³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145630307.

It is not an unprimeable number, because it can be changed into a prime (145630327) 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, 3832358 + ... + 3832395.

It is an arithmetic number, because the mean of its divisors is an integer number (38323770).

Almost surely, 2^145630307 is an apocalyptic number.

145630307 is a deficient number, since it is larger than the sum of its proper divisors (7664773).

145630307 is an equidigital number, since it uses as much as digits as its factorization.

145630307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664772.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 145630307 is about 12067.7382719381. The cubic root of 145630307 is about 526.1189221105.

Adding to 145630307 its reverse (703036541), we get a palindrome (848666848).

The spelling of 145630307 in words is "one hundred forty-five million, six hundred thirty thousand, three hundred seven".