1146525213 has 4 divisors (see below), whose sum is σ = 1528700288. Its totient is φ = 764350140.

The previous prime is 1146525209. The next prime is 1146525221. The reversal of 1146525213 is 3125256411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3125256411 = 3 ⋅1041752137.

It is not a de Polignac number, because 1146525213 - 2² = 1146525209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146525293) 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, 191087533 + ... + 191087538.

It is an arithmetic number, because the mean of its divisors is an integer number (382175072).

Almost surely, 2^1146525213 is an apocalyptic number.

It is an amenable number.

1146525213 is a deficient number, since it is larger than the sum of its proper divisors (382175075).

1146525213 is an equidigital number, since it uses as much as digits as its factorization.

1146525213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382175074.

The product of its digits is 7200, while the sum is 30.

The square root of 1146525213 is about 33860.3782170253. The cubic root of 1146525213 is about 1046.6332717628.

The spelling of 1146525213 in words is "one billion, one hundred forty-six million, five hundred twenty-five thousand, two hundred thirteen".