145472405 has 16 divisors (see below), whose sum is σ = 189060480. Its totient is φ = 106817088.

The previous prime is 145472389. The next prime is 145472423. The reversal of 145472405 is 504274541.

It is a cyclic number.

It is not a de Polignac number, because 145472405 - 2⁴ = 145472389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5384 + ... + 17886.

It is an arithmetic number, because the mean of its divisors is an integer number (11816280).

Almost surely, 2^145472405 is an apocalyptic number.

It is an amenable number.

145472405 is a deficient number, since it is larger than the sum of its proper divisors (43588075).

145472405 is a wasteful number, since it uses less digits than its factorization.

145472405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12700.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 145472405 is about 12061.1941780240. The cubic root of 145472405 is about 525.9287023797.

The spelling of 145472405 in words is "one hundred forty-five million, four hundred seventy-two thousand, four hundred five".