381653141 has 8 divisors (see below), whose sum is σ = 383350968. Its totient is φ = 379960000.

The previous prime is 381653131. The next prime is 381653147. The reversal of 381653141 is 141356183.

It can be written as a sum of positive squares in 4 ways, for example, as 177449041 + 204204100 = 13321^2 + 14290^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381653141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 381653098 and 381653107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381653147) 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, 322571 + ... + 323751.

It is an arithmetic number, because the mean of its divisors is an integer number (47918871).

Almost surely, 2^381653141 is an apocalyptic number.

It is an amenable number.

381653141 is a deficient number, since it is larger than the sum of its proper divisors (1697827).

381653141 is a wasteful number, since it uses less digits than its factorization.

381653141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its digits is 8640, while the sum is 32.

The square root of 381653141 is about 19535.9448453357. The cubic root of 381653141 is about 725.3644721520.

The spelling of 381653141 in words is "three hundred eighty-one million, six hundred fifty-three thousand, one hundred forty-one".