145849893 has 32 divisors (see below), whose sum is σ = 229342464. Its totient is φ = 80704512.

The previous prime is 145849889. The next prime is 145849897. The reversal of 145849893 is 398948541.

145849893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145849889) and next prime (145849897).

It is not a de Polignac number, because 145849893 - 2² = 145849889 is a prime.

It is a super-2 number, since 2×145849893² = 42544382576222898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145849897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261571 + ... + 262127.

It is an arithmetic number, because the mean of its divisors is an integer number (7166952).

Almost surely, 2^145849893 is an apocalyptic number.

It is an amenable number.

145849893 is a deficient number, since it is larger than the sum of its proper divisors (83492571).

145849893 is a wasteful number, since it uses less digits than its factorization.

145849893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941.

The product of its digits is 1244160, while the sum is 51.

The square root of 145849893 is about 12076.8329043669. The cubic root of 145849893 is about 526.3832222524.

The spelling of 145849893 in words is "one hundred forty-five million, eight hundred forty-nine thousand, eight hundred ninety-three".