145051013 has 2 divisors, whose sum is σ = 145051014. Its totient is φ = 145051012.

The previous prime is 145051007. The next prime is 145051033. The reversal of 145051013 is 310150541.

It is an a-pointer prime, because the next prime (145051033) can be obtained adding 145051013 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141181924 + 3869089 = 11882^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 145051013 - 2²⁰ = 144002437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145051033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72525506 + 72525507.

It is an arithmetic number, because the mean of its divisors is an integer number (72525507).

Almost surely, 2^145051013 is an apocalyptic number.

It is an amenable number.

145051013 is a deficient number, since it is larger than the sum of its proper divisors (1).

145051013 is an equidigital number, since it uses as much as digits as its factorization.

145051013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 145051013 is about 12043.7125920540. The cubic root of 145051013 is about 525.4203895149.

The spelling of 145051013 in words is "one hundred forty-five million, fifty-one thousand, thirteen".