1202381 has 4 divisors (see below), whose sum is σ = 1206492. Its totient is φ = 1198272.

The previous prime is 1202363. The next prime is 1202387. The reversal of 1202381 is 1832021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1832021 = 911 ⋅2011.

It can be written as a sum of positive squares in 2 ways, for example, as 133225 + 1069156 = 365^2 + 1034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202381 - 2⁶ = 1202317 is a prime.

It is a super-2 number, since 2×1202381² = 2891440138322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202387) 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, 1580 + ... + 2213.

It is an arithmetic number, because the mean of its divisors is an integer number (301623).

2^1202381 is an apocalyptic number.

It is an amenable number.

1202381 is a deficient number, since it is larger than the sum of its proper divisors (4111).

1202381 is an equidigital number, since it uses as much as digits as its factorization.

1202381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1202381 is about 1096.5313493011. The cubic root of 1202381 is about 106.3360935420.

The spelling of 1202381 in words is "one million, two hundred two thousand, three hundred eighty-one".