145349145525 has 12 divisors (see below), whose sum is σ = 240310587392. Its totient is φ = 77519544240.

The previous prime is 145349145499. The next prime is 145349145569. The reversal of 145349145525 is 525541943541.

It is not a de Polignac number, because 145349145525 - 2⁹ = 145349145013 is a prime.

It is a super-2 number, since 2×145349145525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968994229 + ... + 968994378.

Almost surely, 2^145349145525 is an apocalyptic number.

145349145525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145349145525 is a deficient number, since it is larger than the sum of its proper divisors (94961441867).

145349145525 is a wasteful number, since it uses less digits than its factorization.

145349145525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937988620 (or 1937988615 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 48.

The spelling of 145349145525 in words is "one hundred forty-five billion, three hundred forty-nine million, one hundred forty-five thousand, five hundred twenty-five".