1953223245 has 24 divisors (see below), whose sum is σ = 3584740536. Its totient is φ = 980441088.

The previous prime is 1953223241. The next prime is 1953223247. The reversal of 1953223245 is 5423223591.

1953223245 is a `hidden beast` number, since 1 + 9 + 5 + 322 + 324 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 958893156 + 994330089 = 30966^2 + 31533^2 .

It is not a de Polignac number, because 1953223245 - 2² = 1953223241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953223241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1275852 + ... + 1277381.

It is an arithmetic number, because the mean of its divisors is an integer number (149364189).

Almost surely, 2^1953223245 is an apocalyptic number.

1953223245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1953223245 is a deficient number, since it is larger than the sum of its proper divisors (1631517291).

1953223245 is a wasteful number, since it uses less digits than its factorization.

1953223245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553261 (or 2553258 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1953223245 is about 44195.2853254733. The cubic root of 1953223245 is about 1250.0209585819.

The spelling of 1953223245 in words is "one billion, nine hundred fifty-three million, two hundred twenty-three thousand, two hundred forty-five".