381835151 has 2 divisors, whose sum is σ = 381835152. Its totient is φ = 381835150.

The previous prime is 381835127. The next prime is 381835183. The reversal of 381835151 is 151538183.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381835151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381835451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190917575 + 190917576.

It is an arithmetic number, because the mean of its divisors is an integer number (190917576).

Almost surely, 2^381835151 is an apocalyptic number.

381835151 is a deficient number, since it is larger than the sum of its proper divisors (1).

381835151 is an equidigital number, since it uses as much as digits as its factorization.

381835151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 35.

The square root of 381835151 is about 19540.6026263265. The cubic root of 381835151 is about 725.4797623563.

It can be divided in two parts, 38183 and 5151, that added together give a palindrome (43334).

The spelling of 381835151 in words is "three hundred eighty-one million, eight hundred thirty-five thousand, one hundred fifty-one".