145854405 has 32 divisors (see below), whose sum is σ = 260430720. Its totient is φ = 77448960.

The previous prime is 145854367. The next prime is 145854421. The reversal of 145854405 is 504458541.

It is a happy number.

145854405 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 145854405 - 2¹⁶ = 145788869 is a prime.

It is a super-4 number, since 4×145854405⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145854405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30294 + ... + 34776.

It is an arithmetic number, because the mean of its divisors is an integer number (8138460).

Almost surely, 2^145854405 is an apocalyptic number.

145854405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145854405 is a deficient number, since it is larger than the sum of its proper divisors (114576315).

145854405 is a wasteful number, since it uses less digits than its factorization.

145854405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738 (or 4732 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 145854405 is about 12077.0197068648. The cubic root of 145854405 is about 526.3886502455.

The spelling of 145854405 in words is "one hundred forty-five million, eight hundred fifty-four thousand, four hundred five".