146031317 has 4 divisors (see below), whose sum is σ = 148031820. Its totient is φ = 144030816.

The previous prime is 146031251. The next prime is 146031323. The reversal of 146031317 is 713130641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 713130641 = 1747 ⋅408203.

It can be written as a sum of positive squares in 2 ways, for example, as 47803396 + 98227921 = 6914^2 + 9911^2 .

It is a cyclic number.

It is not a de Polignac number, because 146031317 - 2¹⁴ = 146014933 is a prime.

It is a Duffinian number.

146031317 is a modest number, since divided by 31317 gives 146 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146031337) 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, 1000142 + ... + 1000287.

It is an arithmetic number, because the mean of its divisors is an integer number (37007955).

Almost surely, 2^146031317 is an apocalyptic number.

It is an amenable number.

146031317 is a deficient number, since it is larger than the sum of its proper divisors (2000503).

146031317 is an equidigital number, since it uses as much as digits as its factorization.

146031317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000502.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 146031317 is about 12084.3418107897. The cubic root of 146031317 is about 526.6013894332.

Adding to 146031317 its reverse (713130641), we get a palindrome (859161958).

The spelling of 146031317 in words is "one hundred forty-six million, thirty-one thousand, three hundred seventeen".