1338547953 has 8 divisors (see below), whose sum is σ = 1792391328. Its totient is φ = 888534944.

The previous prime is 1338547897. The next prime is 1338547957. The reversal of 1338547953 is 3597458331.

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 1338547953 - 2²² = 1334353649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338547957) 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, 956775 + ... + 958172.

It is an arithmetic number, because the mean of its divisors is an integer number (224048916).

Almost surely, 2^1338547953 is an apocalyptic number.

It is an amenable number.

1338547953 is a deficient number, since it is larger than the sum of its proper divisors (453843375).

1338547953 is a wasteful number, since it uses less digits than its factorization.

1338547953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915183.

The product of its digits is 1360800, while the sum is 48.

The square root of 1338547953 is about 36586.1716089563. The cubic root of 1338547953 is about 1102.0754076899.

The spelling of 1338547953 in words is "one billion, three hundred thirty-eight million, five hundred forty-seven thousand, nine hundred fifty-three".