145011464209 has 2 divisors, whose sum is σ = 145011464210. Its totient is φ = 145011464208.

The previous prime is 145011464201. The next prime is 145011464237. The reversal of 145011464209 is 902464110541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139392462609 + 5619001600 = 373353^2 + 74960^2 .

It is a cyclic number.

It is not a de Polignac number, because 145011464209 - 2³ = 145011464201 is a prime.

It is not a weakly prime, because it can be changed into another prime (145011464201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72505732104 + 72505732105.

It is an arithmetic number, because the mean of its divisors is an integer number (72505732105).

Almost surely, 2^145011464209 is an apocalyptic number.

It is an amenable number.

145011464209 is a deficient number, since it is larger than the sum of its proper divisors (1).

145011464209 is an equidigital number, since it uses as much as digits as its factorization.

145011464209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 145011464209 in words is "one hundred forty-five billion, eleven million, four hundred sixty-four thousand, two hundred nine".