1131953473 has 8 divisors (see below), whose sum is σ = 1299075840. Its totient is φ = 966184800.

The previous prime is 1131953467. The next prime is 1131953479. The reversal of 1131953473 is 3743591311.

It is an interprime number because it is at equal distance from previous prime (1131953467) and next prime (1131953479).

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

It is not a de Polignac number, because 1131953473 - 2⁹ = 1131952961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131953479) 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, 336628 + ... + 339973.

It is an arithmetic number, because the mean of its divisors is an integer number (162384480).

Almost surely, 2^1131953473 is an apocalyptic number.

It is an amenable number.

1131953473 is a deficient number, since it is larger than the sum of its proper divisors (167122367).

1131953473 is an equidigital number, since it uses as much as digits as its factorization.

1131953473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676847.

The product of its digits is 34020, while the sum is 37.

The square root of 1131953473 is about 33644.5162396489. The cubic root of 1131953473 is about 1042.1802980439.

The spelling of 1131953473 in words is "one billion, one hundred thirty-one million, nine hundred fifty-three thousand, four hundred seventy-three".