145230665250 has 128 divisors (see below), whose sum is σ = 412643911680. Its totient is φ = 33676632000.

The previous prime is 145230665231. The next prime is 145230665263. The reversal of 145230665250 is 52566032541.

It is a super-2 number, since 2×145230665250² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145230665199 and 145230665208.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192940 + ... + 572439.

It is an arithmetic number, because the mean of its divisors is an integer number (3223780560).

Almost surely, 2^145230665250 is an apocalyptic number.

145230665250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145230665250 is an abundant number, since it is smaller than the sum of its proper divisors (267413246430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145230665250 is a wasteful number, since it uses less digits than its factorization.

145230665250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765433 (or 765423 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 145230665250 its reverse (52566032541), we get a palindrome (197796697791).

The spelling of 145230665250 in words is "one hundred forty-five billion, two hundred thirty million, six hundred sixty-five thousand, two hundred fifty".