238987545 has 16 divisors (see below), whose sum is σ = 382709760. Its totient is φ = 127350144.

The previous prime is 238987537. The next prime is 238987559. The reversal of 238987545 is 545789832.

It is not a de Polignac number, because 238987545 - 2³ = 238987537 is a prime.

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, 12957 + ... + 25413.

It is an arithmetic number, because the mean of its divisors is an integer number (23919360).

Almost surely, 2^238987545 is an apocalyptic number.

It is an amenable number.

238987545 is a deficient number, since it is larger than the sum of its proper divisors (143722215).

238987545 is a wasteful number, since it uses less digits than its factorization.

238987545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13744.

The product of its digits is 2419200, while the sum is 51.

The square root of 238987545 is about 15459.2220050040. Note that the first 3 decimals coincide. The cubic root of 238987545 is about 620.5713991753.

The spelling of 238987545 in words is "two hundred thirty-eight million, nine hundred eighty-seven thousand, five hundred forty-five".