1146987071 has 4 divisors (see below), whose sum is σ = 1153395000. Its totient is φ = 1140579144.

The previous prime is 1146987019. The next prime is 1146987077. The reversal of 1146987071 is 1707896411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1707896411 = 13 ⋅131376647.

It is a cyclic number.

It is not a de Polignac number, because 1146987071 - 2¹⁴ = 1146970687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146987077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203696 + ... + 3204053.

It is an arithmetic number, because the mean of its divisors is an integer number (288348750).

Almost surely, 2^1146987071 is an apocalyptic number.

1146987071 is a deficient number, since it is larger than the sum of its proper divisors (6407929).

1146987071 is an equidigital number, since it uses as much as digits as its factorization.

1146987071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407928.

The product of its (nonzero) digits is 84672, while the sum is 44.

The square root of 1146987071 is about 33867.1975663768. The cubic root of 1146987071 is about 1046.7737923112.

The spelling of 1146987071 in words is "one billion, one hundred forty-six million, nine hundred eighty-seven thousand, seventy-one".