1953249226 has 4 divisors (see below), whose sum is σ = 2929873842. Its totient is φ = 976624612.

The previous prime is 1953249223. The next prime is 1953249239. The reversal of 1953249226 is 6229423591.

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

It can be written as a sum of positive squares in only one way, i.e., 1865808025 + 87441201 = 43195^2 + 9351^2 .

It is not an unprimeable number, because it can be changed into a prime (1953249223) 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 as a sum of consecutive naturals, namely, 488312305 + ... + 488312308.

Almost surely, 2^1953249226 is an apocalyptic number.

1953249226 is a deficient number, since it is larger than the sum of its proper divisors (976624616).

1953249226 is an equidigital number, since it uses as much as digits as its factorization.

1953249226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976624615.

The product of its digits is 233280, while the sum is 43.

The square root of 1953249226 is about 44195.5792585639. The cubic root of 1953249226 is about 1250.0265009848.

The spelling of 1953249226 in words is "one billion, nine hundred fifty-three million, two hundred forty-nine thousand, two hundred twenty-six".