145610393 has 4 divisors (see below), whose sum is σ = 149161908. Its totient is φ = 142058880.

The previous prime is 145610369. The next prime is 145610431. The reversal of 145610393 is 393016541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72114064 + 73496329 = 8492^2 + 8573^2 .

It is a cyclic number.

It is not a de Polignac number, because 145610393 - 2⁶ = 145610329 is a prime.

It is a super-2 number, since 2×145610393² = 42404773099228898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145610323) 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, 1775696 + ... + 1775777.

It is an arithmetic number, because the mean of its divisors is an integer number (37290477).

Almost surely, 2^145610393 is an apocalyptic number.

It is an amenable number.

145610393 is a deficient number, since it is larger than the sum of its proper divisors (3551515).

145610393 is an equidigital number, since it uses as much as digits as its factorization.

145610393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551514.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 145610393 is about 12066.9131512579. The cubic root of 145610393 is about 526.0949399005.

The spelling of 145610393 in words is "one hundred forty-five million, six hundred ten thousand, three hundred ninety-three".