145359913 has 2 divisors, whose sum is σ = 145359914. Its totient is φ = 145359912.

The previous prime is 145359901. The next prime is 145359943. The reversal of 145359913 is 319953541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117765904 + 27594009 = 10852^2 + 5253^2 .

It is a cyclic number.

It is not a de Polignac number, because 145359913 - 2¹³ = 145351721 is a prime.

It is a super-2 number, since 2×145359913² = 42259008614735138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145359943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72679956 + 72679957.

It is an arithmetic number, because the mean of its divisors is an integer number (72679957).

Almost surely, 2^145359913 is an apocalyptic number.

It is an amenable number.

145359913 is a deficient number, since it is larger than the sum of its proper divisors (1).

145359913 is an equidigital number, since it uses as much as digits as its factorization.

145359913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 40.

The square root of 145359913 is about 12056.5298904784. The cubic root of 145359913 is about 525.7931027149.

The spelling of 145359913 in words is "one hundred forty-five million, three hundred fifty-nine thousand, nine hundred thirteen".