1147154387 has 8 divisors (see below), whose sum is σ = 1176867120. Its totient is φ = 1117579680.

The previous prime is 1147154381. The next prime is 1147154423. The reversal of 1147154387 is 7834517411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147154387 is a prime.

It is a super-2 number, since 2×1147154387² = 2631926375226691538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147154381) 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, 17564 + ... + 51017.

It is an arithmetic number, because the mean of its divisors is an integer number (147108390).

Almost surely, 2^1147154387 is an apocalyptic number.

1147154387 is a deficient number, since it is larger than the sum of its proper divisors (29712733).

1147154387 is an equidigital number, since it uses as much as digits as its factorization.

1147154387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69013.

The product of its digits is 94080, while the sum is 41.

The square root of 1147154387 is about 33869.6676541120. The cubic root of 1147154387 is about 1046.8246889872.

The spelling of 1147154387 in words is "one billion, one hundred forty-seven million, one hundred fifty-four thousand, three hundred eighty-seven".