1101142745 has 8 divisors (see below), whose sum is σ = 1321669440. Its totient is φ = 880715440.

The previous prime is 1101142727. The next prime is 1101142747. The reversal of 1101142745 is 5472411011.

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

It is not a de Polignac number, because 1101142745 - 2⁸ = 1101142489 is a prime.

It is a super-2 number, since 2×1101142745² = 2425030689732270050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1101142747) 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, 2210 + ... + 46980.

It is an arithmetic number, because the mean of its divisors is an integer number (165208680).

Almost surely, 2^1101142745 is an apocalyptic number.

It is an amenable number.

1101142745 is a deficient number, since it is larger than the sum of its proper divisors (220526695).

1101142745 is an equidigital number, since it uses as much as digits as its factorization.

1101142745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49695.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1101142745 is about 33183.4709607057. The cubic root of 1101142745 is about 1032.6374562701.

Adding to 1101142745 its reverse (5472411011), we get a palindrome (6573553756).

The spelling of 1101142745 in words is "one billion, one hundred one million, one hundred forty-two thousand, seven hundred forty-five".