145713893 has 16 divisors (see below), whose sum is σ = 165110400. Its totient is φ = 127646400.

The previous prime is 145713871. The next prime is 145713899. The reversal of 145713893 is 398317541.

It is not a de Polignac number, because 145713893 - 2⁶ = 145713829 is a prime.

It is a super-3 number, since 3×145713893³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 145713893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145713899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18968 + ... + 25518.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^145713893 is an apocalyptic number.

145713893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145713893 is a deficient number, since it is larger than the sum of its proper divisors (19396507).

145713893 is a wasteful number, since it uses less digits than its factorization.

145713893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652.

The product of its digits is 90720, while the sum is 41.

The square root of 145713893 is about 12071.2009758764. The cubic root of 145713893 is about 526.2195599660.

The spelling of 145713893 in words is "one hundred forty-five million, seven hundred thirteen thousand, eight hundred ninety-three".