1285479031 has 2 divisors, whose sum is σ = 1285479032. Its totient is φ = 1285479030.

The previous prime is 1285479007. The next prime is 1285479043. The reversal of 1285479031 is 1309745821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1285479031 - 2⁷ = 1285478903 is a prime.

It is a super-2 number, since 2×1285479031² = 3304912678281397922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285479931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642739515 + 642739516.

It is an arithmetic number, because the mean of its divisors is an integer number (642739516).

Almost surely, 2^1285479031 is an apocalyptic number.

1285479031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285479031 is an equidigital number, since it uses as much as digits as its factorization.

1285479031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1285479031 is about 35853.5776596981. The cubic root of 1285479031 is about 1087.3140474940.

The spelling of 1285479031 in words is "one billion, two hundred eighty-five million, four hundred seventy-nine thousand, thirty-one".