1119940651 has 4 divisors (see below), whose sum is σ = 1123150000. Its totient is φ = 1116731304.

The previous prime is 1119940649. The next prime is 1119940687. The reversal of 1119940651 is 1560499111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1119940651 - 2¹ = 1119940649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1119940651.

It is not an unprimeable number, because it can be changed into a prime (1119940631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604151 + ... + 1604848.

It is an arithmetic number, because the mean of its divisors is an integer number (280787500).

Almost surely, 2^1119940651 is an apocalyptic number.

1119940651 is a deficient number, since it is larger than the sum of its proper divisors (3209349).

1119940651 is an equidigital number, since it uses as much as digits as its factorization.

1119940651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209348.

The product of its (nonzero) digits is 9720, while the sum is 37.

The square root of 1119940651 is about 33465.5143543320. The cubic root of 1119940651 is about 1038.4804766336.

The spelling of 1119940651 in words is "one billion, one hundred nineteen million, nine hundred forty thousand, six hundred fifty-one".