145265655331 has 2 divisors, whose sum is σ = 145265655332. Its totient is φ = 145265655330.

The previous prime is 145265655287. The next prime is 145265655389. The reversal of 145265655331 is 133556562541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145265655331 is a prime.

It is a super-2 number, since 2×145265655331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145265655391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72632827665 + 72632827666.

It is an arithmetic number, because the mean of its divisors is an integer number (72632827666).

Almost surely, 2^145265655331 is an apocalyptic number.

145265655331 is a deficient number, since it is larger than the sum of its proper divisors (1).

145265655331 is an equidigital number, since it uses as much as digits as its factorization.

145265655331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620000, while the sum is 46.

The spelling of 145265655331 in words is "one hundred forty-five billion, two hundred sixty-five million, six hundred fifty-five thousand, three hundred thirty-one".