145349645061 has 16 divisors (see below), whose sum is σ = 204119006400. Its totient is φ = 91745998848.

The previous prime is 145349645041. The next prime is 145349645071. The reversal of 145349645061 is 160546943541.

It is a happy number.

It is not a de Polignac number, because 145349645061 - 2⁷ = 145349644933 is a prime.

It is a super-2 number, since 2×145349645061² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145349645061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145349645041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648636 + ... + 843461.

It is an arithmetic number, because the mean of its divisors is an integer number (12757437900).

Almost surely, 2^145349645061 is an apocalyptic number.

It is an amenable number.

145349645061 is a deficient number, since it is larger than the sum of its proper divisors (58769361339).

145349645061 is a wasteful number, since it uses less digits than its factorization.

145349645061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493828.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 145349645061 in words is "one hundred forty-five billion, three hundred forty-nine million, six hundred forty-five thousand, sixty-one".