145344645625 has 10 divisors (see below), whose sum is σ = 181622669954. Its totient is φ = 116275716000.

The previous prime is 145344645581. The next prime is 145344645631. The reversal of 145344645625 is 526546443541.

It can be written as a sum of positive squares in 5 ways, for example, as 25005729424 + 120338916201 = 158132^2 + 346899^2 .

It is not a de Polignac number, because 145344645625 - 2⁹ = 145344645113 is a prime.

It is a super-2 number, since 2×145344645625² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 116275092 + ... + 116276341.

Almost surely, 2^145344645625 is an apocalyptic number.

It is an amenable number.

145344645625 is a deficient number, since it is larger than the sum of its proper divisors (36278024329).

145344645625 is an frugal number, since it uses more digits than its factorization.

145344645625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232551453 (or 232551438 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 49.

The spelling of 145344645625 in words is "one hundred forty-five billion, three hundred forty-four million, six hundred forty-five thousand, six hundred twenty-five".