1651053223 has 4 divisors (see below), whose sum is σ = 1653252448. Its totient is φ = 1648854000.

The previous prime is 1651053133. The next prime is 1651053253. The reversal of 1651053223 is 3223501561.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1651053223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1651053191 and 1651053200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651053253) 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, 1098486 + ... + 1099987.

It is an arithmetic number, because the mean of its divisors is an integer number (413313112).

Almost surely, 2^1651053223 is an apocalyptic number.

1651053223 is a deficient number, since it is larger than the sum of its proper divisors (2199225).

1651053223 is an equidigital number, since it uses as much as digits as its factorization.

1651053223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199224.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1651053223 is about 40633.1542339504. The cubic root of 1651053223 is about 1181.9171227570.

Adding to 1651053223 its reverse (3223501561), we get a palindrome (4874554784).

The spelling of 1651053223 in words is "one billion, six hundred fifty-one million, fifty-three thousand, two hundred twenty-three".