145313025 has 96 divisors (see below), whose sum is σ = 299230848. Its totient is φ = 61132800.

The previous prime is 145313009. The next prime is 145313071. The reversal of 145313025 is 520313541.

It is not a de Polignac number, because 145313025 - 2⁴ = 145313009 is a prime.

It is a super-2 number, since 2×145313025² = 42231750469301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145312986 and 145313004.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 181927 + ... + 182723.

It is an arithmetic number, because the mean of its divisors is an integer number (3116988).

Almost surely, 2^145313025 is an apocalyptic number.

145313025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145313025 is an abundant number, since it is smaller than the sum of its proper divisors (153917823).

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

145313025 is a wasteful number, since it uses less digits than its factorization.

145313025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 145313025 is about 12054.5852272071. The cubic root of 145313025 is about 525.7365625089.

Adding to 145313025 its reverse (520313541), we get a palindrome (665626566).

The spelling of 145313025 in words is "one hundred forty-five million, three hundred thirteen thousand, twenty-five".