145385349149 has 2 divisors, whose sum is σ = 145385349150. Its totient is φ = 145385349148.

The previous prime is 145385349143. The next prime is 145385349209. The reversal of 145385349149 is 941943583541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143243325625 + 2142023524 = 378475^2 + 46282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145385349149 is a prime.

It is a super-2 number, since 2×145385349149² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145385349094 and 145385349103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145385349143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72692674574 + 72692674575.

It is an arithmetic number, because the mean of its divisors is an integer number (72692674575).

Almost surely, 2^145385349149 is an apocalyptic number.

It is an amenable number.

145385349149 is a deficient number, since it is larger than the sum of its proper divisors (1).

145385349149 is an equidigital number, since it uses as much as digits as its factorization.

145385349149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 56.

The spelling of 145385349149 in words is "one hundred forty-five billion, three hundred eighty-five million, three hundred forty-nine thousand, one hundred forty-nine".