1146534431 has 8 divisors (see below), whose sum is σ = 1312632480. Its totient is φ = 981013248.

The previous prime is 1146534409. The next prime is 1146534463. The reversal of 1146534431 is 1344356411.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1146534431 - 2²² = 1142340127 is a prime.

It is a super-2 number, since 2×1146534431² = 2629082402936987522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146534481) 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, 139946 + ... + 147911.

It is an arithmetic number, because the mean of its divisors is an integer number (164079060).

Almost surely, 2^1146534431 is an apocalyptic number.

1146534431 is a deficient number, since it is larger than the sum of its proper divisors (166098049).

1146534431 is an equidigital number, since it uses as much as digits as its factorization.

1146534431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288433.

The product of its digits is 17280, while the sum is 32.

The square root of 1146534431 is about 33860.5143345461. The cubic root of 1146534431 is about 1046.6360767134.

The spelling of 1146534431 in words is "one billion, one hundred forty-six million, five hundred thirty-four thousand, four hundred thirty-one".