145840011269 has 2 divisors, whose sum is σ = 145840011270. Its totient is φ = 145840011268.

The previous prime is 145840011253. The next prime is 145840011293. The reversal of 145840011269 is 962110048541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145800258244 + 39753025 = 381838^2 + 6305^2 .

It is a cyclic number.

It is not a de Polignac number, because 145840011269 - 2⁴ = 145840011253 is a prime.

It is a super-2 number, since 2×145840011269² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145840013269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72920005634 + 72920005635.

It is an arithmetic number, because the mean of its divisors is an integer number (72920005635).

Almost surely, 2^145840011269 is an apocalyptic number.

It is an amenable number.

145840011269 is a deficient number, since it is larger than the sum of its proper divisors (1).

145840011269 is an equidigital number, since it uses as much as digits as its factorization.

145840011269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 145840011269 in words is "one hundred forty-five billion, eight hundred forty million, eleven thousand, two hundred sixty-nine".