145573538 has 16 divisors (see below), whose sum is σ = 239147424. Its totient is φ = 65909760.

The previous prime is 145573517. The next prime is 145573541. The reversal of 145573538 is 835375541.

It is a junction number, because it is equal to n+sod(n) for n = 145573495 and 145573504.

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, 7220 + ... + 18527.

It is an arithmetic number, because the mean of its divisors is an integer number (14946714).

Almost surely, 2^145573538 is an apocalyptic number.

145573538 is a deficient number, since it is larger than the sum of its proper divisors (93573886).

145573538 is a wasteful number, since it uses less digits than its factorization.

145573538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26017.

The product of its digits is 252000, while the sum is 41.

The square root of 145573538 is about 12065.3859449253. The cubic root of 145573538 is about 526.0505500629.

The spelling of 145573538 in words is "one hundred forty-five million, five hundred seventy-three thousand, five hundred thirty-eight".