145712307 has 48 divisors (see below), whose sum is σ = 221872128. Its totient is φ = 84913920.

The previous prime is 145712299. The next prime is 145712341. The reversal of 145712307 is 703217541.

It is not a de Polignac number, because 145712307 - 2³ = 145712299 is a prime.

It is a super-2 number, since 2×145712307² = 42464152822524498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145712407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1147278 + ... + 1147404.

It is an arithmetic number, because the mean of its divisors is an integer number (4622336).

Almost surely, 2^145712307 is an apocalyptic number.

145712307 is a deficient number, since it is larger than the sum of its proper divisors (76159821).

145712307 is a wasteful number, since it uses less digits than its factorization.

145712307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 145712307 is about 12071.1352821514. The cubic root of 145712307 is about 526.2176507743.

Adding to 145712307 its reverse (703217541), we get a palindrome (848929848).

The spelling of 145712307 in words is "one hundred forty-five million, seven hundred twelve thousand, three hundred seven".