145922643 has 12 divisors (see below), whose sum is σ = 211169608. Its totient is φ = 97100640.

The previous prime is 145922633. The next prime is 145922669. The reversal of 145922643 is 346229541.

It is a happy number.

145922643 is a `hidden beast` number, since 1 + 4 + 5 + 9 + 2 + 2 + 643 = 666.

It is not a de Polignac number, because 145922643 - 2¹² = 145918547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145922598 and 145922607.

It is not an unprimeable number, because it can be changed into a prime (145922633) 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 11 ways as a sum of consecutive naturals, for example, 9898 + ... + 19743.

Almost surely, 2^145922643 is an apocalyptic number.

145922643 is a deficient number, since it is larger than the sum of its proper divisors (65246965).

145922643 is a wasteful number, since it uses less digits than its factorization.

145922643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30194 (or 30191 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 145922643 is about 12079.8444940322. The cubic root of 145922643 is about 526.4707277768.

The spelling of 145922643 in words is "one hundred forty-five million, nine hundred twenty-two thousand, six hundred forty-three".