1953540453 has 8 divisors (see below), whose sum is σ = 2617943328. Its totient is φ = 1295748944.

The previous prime is 1953540367. The next prime is 1953540509. The reversal of 1953540453 is 3540453591.

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

It is a cyclic number.

It is not a de Polignac number, because 1953540453 - 2⁹ = 1953539941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953540053) 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, 1652151 + ... + 1653332.

It is an arithmetic number, because the mean of its divisors is an integer number (327242916).

Almost surely, 2^1953540453 is an apocalyptic number.

It is an amenable number.

1953540453 is a deficient number, since it is larger than the sum of its proper divisors (664402875).

1953540453 is a wasteful number, since it uses less digits than its factorization.

1953540453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305683.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 1953540453 is about 44198.8738883696. The cubic root of 1953540453 is about 1250.0886236899.

The spelling of 1953540453 in words is "one billion, nine hundred fifty-three million, five hundred forty thousand, four hundred fifty-three".