381470101 has 4 divisors (see below), whose sum is σ = 381791052. Its totient is φ = 381149152.

The previous prime is 381470099. The next prime is 381470107. The reversal of 381470101 is 101074183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101074183 = 7 ⋅14439169.

It can be written as a sum of positive squares in 2 ways, for example, as 156500100 + 224970001 = 12510^2 + 14999^2 .

It is a cyclic number.

It is not a de Polignac number, because 381470101 - 2¹ = 381470099 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381470107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158686 + ... + 161071.

It is an arithmetic number, because the mean of its divisors is an integer number (95447763).

Almost surely, 2^381470101 is an apocalyptic number.

It is an amenable number.

381470101 is a deficient number, since it is larger than the sum of its proper divisors (320951).

381470101 is a wasteful number, since it uses less digits than its factorization.

381470101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320950.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 381470101 is about 19531.2595855976. The cubic root of 381470101 is about 725.2484925448.

The spelling of 381470101 in words is "three hundred eighty-one million, four hundred seventy thousand, one hundred one".