381542701 has 4 divisors (see below), whose sum is σ = 381593052. Its totient is φ = 381492352.

The previous prime is 381542659. The next prime is 381542717. The reversal of 381542701 is 107245183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32787076 + 348755625 = 5726^2 + 18675^2 .

It is a cyclic number.

It is not a de Polignac number, because 381542701 - 2¹³ = 381534509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381542201) by changing a digit.

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, 11236 + ... + 29821.

It is an arithmetic number, because the mean of its divisors is an integer number (95398263).

Almost surely, 2^381542701 is an apocalyptic number.

It is an amenable number.

381542701 is a deficient number, since it is larger than the sum of its proper divisors (50351).

381542701 is an equidigital number, since it uses as much as digits as its factorization.

381542701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50350.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 381542701 is about 19533.1180562654. The cubic root of 381542701 is about 725.2944985101.

Adding to 381542701 its reverse (107245183), we get a palindrome (488787884).

The spelling of 381542701 in words is "three hundred eighty-one million, five hundred forty-two thousand, seven hundred one".