1011274645 has 16 divisors (see below), whose sum is σ = 1248236352. Its totient is φ = 786078720.

The previous prime is 1011274643. The next prime is 1011274651. The reversal of 1011274645 is 5464721101.

It is not a de Polignac number, because 1011274645 - 2¹ = 1011274643 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 (1011274643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29310 + ... + 53680.

It is an arithmetic number, because the mean of its divisors is an integer number (78014772).

Almost surely, 2^1011274645 is an apocalyptic number.

It is an amenable number.

1011274645 is a deficient number, since it is larger than the sum of its proper divisors (236961707).

1011274645 is a wasteful number, since it uses less digits than its factorization.

1011274645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24612.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1011274645 is about 31800.5447280389. The cubic root of 1011274645 is about 1003.7441786300.

Adding to 1011274645 its reverse (5464721101), we get a palindrome (6475995746).

The spelling of 1011274645 in words is "one billion, eleven million, two hundred seventy-four thousand, six hundred forty-five".