1031645413 has 4 divisors (see below), whose sum is σ = 1085942560. Its totient is φ = 977348268.

The previous prime is 1031645401. The next prime is 1031645423. The reversal of 1031645413 is 3145461301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031645413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031645423) 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 in 3 ways as a sum of consecutive naturals, for example, 27148545 + ... + 27148582.

It is an arithmetic number, because the mean of its divisors is an integer number (271485640).

Almost surely, 2^1031645413 is an apocalyptic number.

It is an amenable number.

1031645413 is a deficient number, since it is larger than the sum of its proper divisors (54297147).

1031645413 is an equidigital number, since it uses as much as digits as its factorization.

1031645413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54297146.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1031645413 is about 32119.2374286813. The cubic root of 1031645413 is about 1010.4391166423.

The spelling of 1031645413 in words is "one billion, thirty-one million, six hundred forty-five thousand, four hundred thirteen".