1235131 has 2 divisors, whose sum is σ = 1235132. Its totient is φ = 1235130.

The previous prime is 1235099. The next prime is 1235137. The reversal of 1235131 is 1315321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1235131 - 2⁵ = 1235099 is a prime.

It is a super-2 number, since 2×1235131² = 3051097174322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1235137) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617565 + 617566.

It is an arithmetic number, because the mean of its divisors is an integer number (617566).

2^1235131 is an apocalyptic number.

1235131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235131 is an equidigital number, since it uses as much as digits as its factorization.

1235131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 16.

The square root of 1235131 is about 1111.3644766682. The cubic root of 1235131 is about 107.2929057868.

The spelling of 1235131 in words is "one million, two hundred thirty-five thousand, one hundred thirty-one".