145304347 has 8 divisors (see below), whose sum is σ = 150671360. Its totient is φ = 139979880.

The previous prime is 145304339. The next prime is 145304377. The reversal of 145304347 is 743403541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145304347 - 2³ = 145304339 is a prime.

It is a super-2 number, since 2×145304347² = 42226706514192818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145304377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3597 + ... + 17422.

It is an arithmetic number, because the mean of its divisors is an integer number (18833920).

Almost surely, 2^145304347 is an apocalyptic number.

145304347 is a deficient number, since it is larger than the sum of its proper divisors (5367013).

145304347 is a wasteful number, since it uses less digits than its factorization.

145304347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21273.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 145304347 is about 12054.2252758110. The cubic root of 145304347 is about 525.7260967513.

Adding to 145304347 its reverse (743403541), we get a palindrome (888707888).

The spelling of 145304347 in words is "one hundred forty-five million, three hundred four thousand, three hundred forty-seven".