145538392 has 8 divisors (see below), whose sum is σ = 272884500. Its totient is φ = 72769192.

The previous prime is 145538389. The next prime is 145538401. The reversal of 145538392 is 293835541.

145538392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9096142 + ... + 9096157.

Almost surely, 2^145538392 is an apocalyptic number.

It is an amenable number.

145538392 is a deficient number, since it is larger than the sum of its proper divisors (127346108).

145538392 is a wasteful number, since it uses less digits than its factorization.

145538392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18192305 (or 18192301 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 145538392 is about 12063.9293764511. The cubic root of 145538392 is about 526.0082116430.

The spelling of 145538392 in words is "one hundred forty-five million, five hundred thirty-eight thousand, three hundred ninety-two".