1146613531 has 8 divisors (see below), whose sum is σ = 1320734720. Its totient is φ = 975072168.

The previous prime is 1146613519. The next prime is 1146613537. The reversal of 1146613531 is 1353166411.

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

It is not a de Polignac number, because 1146613531 - 2⁵ = 1146613499 is a prime.

It is a super-2 number, since 2×1146613531² = 2629445178944575922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1146613493 and 1146613502.

It is not an unprimeable number, because it can be changed into a prime (1146613537) 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, 644001 + ... + 645778.

It is an arithmetic number, because the mean of its divisors is an integer number (165091840).

Almost surely, 2^1146613531 is an apocalyptic number.

1146613531 is a deficient number, since it is larger than the sum of its proper divisors (174121189).

1146613531 is a wasteful number, since it uses less digits than its factorization.

1146613531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289913.

The product of its digits is 6480, while the sum is 31.

The square root of 1146613531 is about 33861.6823415494. The cubic root of 1146613531 is about 1046.6601454803.

Adding to 1146613531 its reverse (1353166411), we get a palindrome (2499779942).

The spelling of 1146613531 in words is "one billion, one hundred forty-six million, six hundred thirteen thousand, five hundred thirty-one".