145868025 has 24 divisors (see below), whose sum is σ = 246305664. Its totient is φ = 76139200.

The previous prime is 145868011. The next prime is 145868029. The reversal of 145868025 is 520868541.

145868025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145868025 - 2⁶ = 145867961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145868029) 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, 17166 + ... + 24215.

It is an arithmetic number, because the mean of its divisors is an integer number (10262736).

Almost surely, 2^145868025 is an apocalyptic number.

145868025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145868025 is a deficient number, since it is larger than the sum of its proper divisors (100437639).

145868025 is a wasteful number, since it uses less digits than its factorization.

145868025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41441 (or 41436 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 145868025 is about 12077.5835745401. The cubic root of 145868025 is about 526.4050345987.

It can be divided in two parts, 14586 and 8025, that multiplied together give a triangular number (117052650 = T₁₅₃₀₀).

The spelling of 145868025 in words is "one hundred forty-five million, eight hundred sixty-eight thousand, twenty-five".