245332138 has 8 divisors (see below), whose sum is σ = 368089920. Its totient is φ = 122635500.

The previous prime is 245332103. The next prime is 245332181. The reversal of 245332138 is 831233542.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3408 + ... + 22411.

It is an arithmetic number, because the mean of its divisors is an integer number (46011240).

Almost surely, 2^245332138 is an apocalyptic number.

245332138 is a deficient number, since it is larger than the sum of its proper divisors (122757782).

245332138 is a wasteful number, since it uses less digits than its factorization.

245332138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30572.

The product of its digits is 17280, while the sum is 31.

The square root of 245332138 is about 15663.0820083405. The cubic root of 245332138 is about 626.0151081561.

The spelling of 245332138 in words is "two hundred forty-five million, three hundred thirty-two thousand, one hundred thirty-eight".