145313047 has 8 divisors (see below), whose sum is σ = 161210880. Its totient is φ = 129863160.

The previous prime is 145313009. The next prime is 145313071. The reversal of 145313047 is 740313541.

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

It is a cyclic number.

It is not a de Polignac number, because 145313047 - 2¹⁵ = 145280279 is a prime.

It is a super-2 number, since 2×145313047² = 42231763256848418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145313087) 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, 111303 + ... + 112600.

It is an arithmetic number, because the mean of its divisors is an integer number (20151360).

Almost surely, 2^145313047 is an apocalyptic number.

145313047 is a deficient number, since it is larger than the sum of its proper divisors (15897833).

145313047 is a wasteful number, since it uses less digits than its factorization.

145313047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223973.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 145313047 is about 12054.5861397229. The cubic root of 145313047 is about 525.7365890406.

Adding to 145313047 its reverse (740313541), we get a palindrome (885626588).

It can be divided in two parts, 14531 and 3047, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 145313047 in words is "one hundred forty-five million, three hundred thirteen thousand, forty-seven".