245120431069 has 2 divisors, whose sum is σ = 245120431070. Its totient is φ = 245120431068.

The previous prime is 245120431051. The next prime is 245120431123. The reversal of 245120431069 is 960134021542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245086383844 + 34047225 = 495062^2 + 5835^2 .

It is a cyclic number.

It is not a de Polignac number, because 245120431069 - 2⁷ = 245120430941 is a prime.

It is a super-3 number, since 3×245120431069³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245120401069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122560215534 + 122560215535.

It is an arithmetic number, because the mean of its divisors is an integer number (122560215535).

Almost surely, 2^245120431069 is an apocalyptic number.

It is an amenable number.

245120431069 is a deficient number, since it is larger than the sum of its proper divisors (1).

245120431069 is an equidigital number, since it uses as much as digits as its factorization.

245120431069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 245120431069 in words is "two hundred forty-five billion, one hundred twenty million, four hundred thirty-one thousand, sixty-nine".