1478971311 has 8 divisors (see below), whose sum is σ = 2020058544. Its totient is φ = 961932480.

The previous prime is 1478971309. The next prime is 1478971331. The reversal of 1478971311 is 1131798741.

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

It is not a de Polignac number, because 1478971311 - 2¹ = 1478971309 is a prime.

It is a super-2 number, since 2×1478971311² = 4374712277522117442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478971331) 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, 6011956 + ... + 6012201.

It is an arithmetic number, because the mean of its divisors is an integer number (252507318).

Almost surely, 2^1478971311 is an apocalyptic number.

1478971311 is a deficient number, since it is larger than the sum of its proper divisors (541087233).

1478971311 is a wasteful number, since it uses less digits than its factorization.

1478971311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024201.

The product of its digits is 42336, while the sum is 42.

The square root of 1478971311 is about 38457.3960506949. The cubic root of 1478971311 is about 1139.3397507978.

The spelling of 1478971311 in words is "one billion, four hundred seventy-eight million, nine hundred seventy-one thousand, three hundred eleven".