383145137 has 8 divisors (see below), whose sum is σ = 387141480. Its totient is φ = 379157760.

The previous prime is 383145131. The next prime is 383145149. The reversal of 383145137 is 731541383.

It can be written as a sum of positive squares in 4 ways, for example, as 207821056 + 175324081 = 14416^2 + 13241^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 383145137 - 2⁴ = 383145121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383145097 and 383145106.

It is not an unprimeable number, because it can be changed into a prime (383145131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113993 + ... + 117305.

It is an arithmetic number, because the mean of its divisors is an integer number (48392685).

Almost surely, 2^383145137 is an apocalyptic number.

It is an amenable number.

383145137 is a deficient number, since it is larger than the sum of its proper divisors (3996343).

383145137 is a wasteful number, since it uses less digits than its factorization.

383145137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483.

The product of its digits is 30240, while the sum is 35.

The square root of 383145137 is about 19574.0935166868. The cubic root of 383145137 is about 726.3084651501.

The spelling of 383145137 in words is "three hundred eighty-three million, one hundred forty-five thousand, one hundred thirty-seven".