1011007645 has 8 divisors (see below), whose sum is σ = 1227826656. Its totient is φ = 799061136.

The previous prime is 1011007637. The next prime is 1011007649. The reversal of 1011007645 is 5467001101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011007645 - 2³ = 1011007637 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 (1011007649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217667 + ... + 1218496.

It is an arithmetic number, because the mean of its divisors is an integer number (153478332).

Almost surely, 2^1011007645 is an apocalyptic number.

It is an amenable number.

1011007645 is a deficient number, since it is larger than the sum of its proper divisors (216819011).

1011007645 is an equidigital number, since it uses as much as digits as its factorization.

1011007645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436251.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1011007645 is about 31796.3464096113. The cubic root of 1011007645 is about 1003.6558335939.

Adding to 1011007645 its reverse (5467001101), we get a palindrome (6478008746).

The spelling of 1011007645 in words is "one billion, eleven million, seven thousand, six hundred forty-five".