145314729 has 24 divisors (see below), whose sum is σ = 248772160. Its totient is φ = 83036016.

The previous prime is 145314727. The next prime is 145314761. The reversal of 145314729 is 927413541.

It is not a de Polignac number, because 145314729 - 2¹ = 145314727 is a prime.

It is a super-2 number, since 2×145314729² = 42232740928686882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145314693 and 145314702.

It is not an unprimeable number, because it can be changed into a prime (145314727) 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 23 ways as a sum of consecutive naturals, for example, 41014 + ... + 44415.

Almost surely, 2^145314729 is an apocalyptic number.

It is an amenable number.

145314729 is a deficient number, since it is larger than the sum of its proper divisors (103457431).

145314729 is an frugal number, since it uses more digits than its factorization.

145314729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85451 (or 85439 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 145314729 is about 12054.6559054998. The cubic root of 145314729 is about 525.7386175016.

The spelling of 145314729 in words is "one hundred forty-five million, three hundred fourteen thousand, seven hundred twenty-nine".