146393069 has 4 divisors (see below), whose sum is σ = 155004444. Its totient is φ = 137781696.

The previous prime is 146393047. The next prime is 146393077. The reversal of 146393069 is 960393641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 960393641 = 71 ⋅13526671.

It can be written as a sum of positive squares in 2 ways, for example, as 68724100 + 77668969 = 8290^2 + 8813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146393069 is a prime.

It is a super-2 number, since 2×146393069² = 42861861302477522, 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 (146393089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4305662 + ... + 4305695.

It is an arithmetic number, because the mean of its divisors is an integer number (38751111).

Almost surely, 2^146393069 is an apocalyptic number.

It is an amenable number.

146393069 is a deficient number, since it is larger than the sum of its proper divisors (8611375).

146393069 is an equidigital number, since it uses as much as digits as its factorization.

146393069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611374.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 146393069 is about 12099.3003516732. The cubic root of 146393069 is about 527.0358670576.

The spelling of 146393069 in words is "one hundred forty-six million, three hundred ninety-three thousand, sixty-nine".