145132405 has 8 divisors (see below), whose sum is σ = 189991584. Its totient is φ = 105550800.

The previous prime is 145132397. The next prime is 145132433. The reversal of 145132405 is 504231541.

It is a happy number.

145132405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145132405 - 2³ = 145132397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145132405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319331 + ... + 1319440.

It is an arithmetic number, because the mean of its divisors is an integer number (23748948).

Almost surely, 2^145132405 is an apocalyptic number.

It is an amenable number.

145132405 is a deficient number, since it is larger than the sum of its proper divisors (44859179).

145132405 is a wasteful number, since it uses less digits than its factorization.

145132405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638787.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145132405 is about 12047.0911426784. The cubic root of 145132405 is about 525.5186469465.

Adding to 145132405 its reverse (504231541), we get a palindrome (649363946).

It can be divided in two parts, 1451 and 32405, that added together give a square (33856 = 184²).

The spelling of 145132405 in words is "one hundred forty-five million, one hundred thirty-two thousand, four hundred five".