1031445345 has 24 divisors (see below), whose sum is σ = 1919752704. Its totient is φ = 471517536.

The previous prime is 1031445293. The next prime is 1031445347. The reversal of 1031445345 is 5435441301.

It is not a de Polignac number, because 1031445345 - 2¹⁰ = 1031444321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031445347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 700929 + ... + 702398.

It is an arithmetic number, because the mean of its divisors is an integer number (79989696).

Almost surely, 2^1031445345 is an apocalyptic number.

1031445345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1031445345 is a deficient number, since it is larger than the sum of its proper divisors (888307359).

1031445345 is a wasteful number, since it uses less digits than its factorization.

1031445345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403349 (or 1403342 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1031445345 is about 32116.1228201662. The cubic root of 1031445345 is about 1010.3737939386.

Adding to 1031445345 its reverse (5435441301), we get a palindrome (6466886646).

The spelling of 1031445345 in words is "one billion, thirty-one million, four hundred forty-five thousand, three hundred forty-five".