145906438 has 8 divisors (see below), whose sum is σ = 219011688. Its totient is φ = 72902544.

The previous prime is 145906433. The next prime is 145906441. The reversal of 145906438 is 834609541.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145906438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145906433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21631 + ... + 27562.

It is an arithmetic number, because the mean of its divisors is an integer number (27376461).

Almost surely, 2^145906438 is an apocalyptic number.

145906438 is a deficient number, since it is larger than the sum of its proper divisors (73105250).

145906438 is a wasteful number, since it uses less digits than its factorization.

145906438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50678.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 145906438 is about 12079.1737300198. The cubic root of 145906438 is about 526.4512385146.

The spelling of 145906438 in words is "one hundred forty-five million, nine hundred six thousand, four hundred thirty-eight".