145348693 has 8 divisors (see below), whose sum is σ = 167666112. Its totient is φ = 123419616.

The previous prime is 145348633. The next prime is 145348699. The reversal of 145348693 is 396843541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145348693 is a prime.

It is a super-2 number, since 2×145348693² = 42252485113616498, 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 (145348699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96280 + ... + 97777.

It is an arithmetic number, because the mean of its divisors is an integer number (20958264).

Almost surely, 2^145348693 is an apocalyptic number.

It is an amenable number.

145348693 is a deficient number, since it is larger than the sum of its proper divisors (22317419).

145348693 is a wasteful number, since it uses less digits than its factorization.

145348693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194171.

The product of its digits is 311040, while the sum is 43.

The square root of 145348693 is about 12056.0645734833. The cubic root of 145348693 is about 525.7795741102.

The spelling of 145348693 in words is "one hundred forty-five million, three hundred forty-eight thousand, six hundred ninety-three".