1147391355 has 32 divisors (see below), whose sum is σ = 2051578368. Its totient is φ = 542739200.

The previous prime is 1147391347. The next prime is 1147391359. The reversal of 1147391355 is 5531937411.

It is not a de Polignac number, because 1147391355 - 2³ = 1147391347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1147391359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78039 + ... + 91568.

It is an arithmetic number, because the mean of its divisors is an integer number (64111824).

Almost surely, 2^1147391355 is an apocalyptic number.

1147391355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1147391355 is a deficient number, since it is larger than the sum of its proper divisors (904187013).

1147391355 is a wasteful number, since it uses less digits than its factorization.

1147391355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169667.

The product of its digits is 56700, while the sum is 39.

The square root of 1147391355 is about 33873.1657067951. The cubic root of 1147391355 is about 1046.8967649800.

The spelling of 1147391355 in words is "one billion, one hundred forty-seven million, three hundred ninety-one thousand, three hundred fifty-five".