1953225971 has 8 divisors (see below), whose sum is σ = 1973714688. Its totient is φ = 1932760000.

The previous prime is 1953225943. The next prime is 1953225991. The reversal of 1953225971 is 1795223591.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1953225971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1953225991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208631 + ... + 217791.

It is an arithmetic number, because the mean of its divisors is an integer number (246714336).

Almost surely, 2^1953225971 is an apocalyptic number.

1953225971 is a deficient number, since it is larger than the sum of its proper divisors (20488717).

1953225971 is a wasteful number, since it uses less digits than its factorization.

1953225971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11373.

The product of its digits is 170100, while the sum is 44.

The square root of 1953225971 is about 44195.3161658563. The cubic root of 1953225971 is about 1250.0215401088.

The spelling of 1953225971 in words is "one billion, nine hundred fifty-three million, two hundred twenty-five thousand, nine hundred seventy-one".