145336238461 has 2 divisors, whose sum is σ = 145336238462. Its totient is φ = 145336238460.

The previous prime is 145336238417. The next prime is 145336238491. The reversal of 145336238461 is 164832633541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83113430436 + 62222808025 = 288294^2 + 249445^2 .

It is an emirp because it is prime and its reverse (164832633541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145336238461 - 2¹³ = 145336230269 is a prime.

It is a super-2 number, since 2×145336238461² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145336238491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72668119230 + 72668119231.

It is an arithmetic number, because the mean of its divisors is an integer number (72668119231).

Almost surely, 2^145336238461 is an apocalyptic number.

It is an amenable number.

145336238461 is a deficient number, since it is larger than the sum of its proper divisors (1).

145336238461 is an equidigital number, since it uses as much as digits as its factorization.

145336238461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 46.

The spelling of 145336238461 in words is "one hundred forty-five billion, three hundred thirty-six million, two hundred thirty-eight thousand, four hundred sixty-one".