1072405511 has 4 divisors (see below), whose sum is σ = 1073023224. Its totient is φ = 1071787800.

The previous prime is 1072405507. The next prime is 1072405531. The reversal of 1072405511 is 1155042701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1155042701 = 5443 ⋅212207.

It is a cyclic number.

It is not a de Polignac number, because 1072405511 - 2² = 1072405507 is a prime.

It is a super-2 number, since 2×1072405511² = 2300107160046342242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072405501) 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, 306245 + ... + 309726.

It is an arithmetic number, because the mean of its divisors is an integer number (268255806).

Almost surely, 2^1072405511 is an apocalyptic number.

1072405511 is a deficient number, since it is larger than the sum of its proper divisors (617713).

1072405511 is an equidigital number, since it uses as much as digits as its factorization.

1072405511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617712.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 1072405511 is about 32747.6031336646. The cubic root of 1072405511 is about 1023.5750211881.

The spelling of 1072405511 in words is "one billion, seventy-two million, four hundred five thousand, five hundred eleven".