1146947919 has 16 divisors (see below), whose sum is σ = 1651507200. Its totient is φ = 703839456.

The previous prime is 1146947917. The next prime is 1146947947. The reversal of 1146947919 is 9197496411.

It is not a de Polignac number, because 1146947919 - 2¹ = 1146947917 is a prime.

It is a super-2 number, since 2×1146947919² = 2630979057796861122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146947911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26959 + ... + 54960.

It is an arithmetic number, because the mean of its divisors is an integer number (103219200).

Almost surely, 2^1146947919 is an apocalyptic number.

1146947919 is a deficient number, since it is larger than the sum of its proper divisors (504559281).

1146947919 is a wasteful number, since it uses less digits than its factorization.

1146947919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82294.

The product of its digits is 489888, while the sum is 51.

The square root of 1146947919 is about 33866.6195390092. The cubic root of 1146947919 is about 1046.7618817573.

The spelling of 1146947919 in words is "one billion, one hundred forty-six million, nine hundred forty-seven thousand, nine hundred nineteen".