145365405 has 16 divisors (see below), whose sum is σ = 242697600. Its totient is φ = 74157248.

The previous prime is 145365373. The next prime is 145365427. The reversal of 145365405 is 504563541.

It is a cyclic number.

It is not a de Polignac number, because 145365405 - 2⁵ = 145365373 is a prime.

It is a super-2 number, since 2×145365405² = 42262201941628050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210330 + ... + 211019.

It is an arithmetic number, because the mean of its divisors is an integer number (15168600).

Almost surely, 2^145365405 is an apocalyptic number.

145365405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145365405 is a deficient number, since it is larger than the sum of its proper divisors (97332195).

145365405 is a wasteful number, since it uses less digits than its factorization.

145365405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421380.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 145365405 is about 12056.7576487213. The cubic root of 145365405 is about 525.7997244840.

The spelling of 145365405 in words is "one hundred forty-five million, three hundred sixty-five thousand, four hundred five".