1963231 has 2 divisors, whose sum is σ = 1963232. Its totient is φ = 1963230.

The previous prime is 1963219. The next prime is 1963243. The reversal of 1963231 is 1323691.

It is a balanced prime because it is at equal distance from previous prime (1963219) and next prime (1963243).

It is an emirp because it is prime and its reverse (1323691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1963231 - 2⁷ = 1963103 is a prime.

It is a super-2 number, since 2×1963231² = 7708551918722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1963196 and 1963205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1963201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981615 + 981616.

It is an arithmetic number, because the mean of its divisors is an integer number (981616).

2^1963231 is an apocalyptic number.

1963231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963231 is an equidigital number, since it uses as much as digits as its factorization.

1963231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 25.

The square root of 1963231 is about 1401.1534534090. The cubic root of 1963231 is about 125.2152238834.

The spelling of 1963231 in words is "one million, nine hundred sixty-three thousand, two hundred thirty-one".