145310025 has 24 divisors (see below), whose sum is σ = 274567744. Its totient is φ = 66427200.

The previous prime is 145310023. The next prime is 145310057. The reversal of 145310025 is 520013541.

It is not a de Polignac number, because 145310025 - 2¹ = 145310023 is a prime.

It is a super-2 number, since 2×145310025² = 42230006731001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145309983 and 145310010.

It is not an unprimeable number, because it can be changed into a prime (145310023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137866 + ... + 138915.

Almost surely, 2^145310025 is an apocalyptic number.

145310025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145310025 is a deficient number, since it is larger than the sum of its proper divisors (129257719).

145310025 is a wasteful number, since it uses less digits than its factorization.

145310025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276801 (or 276796 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 145310025 is about 12054.4607925863. The cubic root of 145310025 is about 525.7329445251.

Adding to 145310025 its reverse (520013541), we get a palindrome (665323566).

The spelling of 145310025 in words is "one hundred forty-five million, three hundred ten thousand, twenty-five".