145623867 has 8 divisors (see below), whose sum is σ = 194228496. Its totient is φ = 97050912.

The previous prime is 145623857. The next prime is 145623871. The reversal of 145623867 is 768326541.

145623867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145623867 - 2¹⁰ = 145622843 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (145623857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6633 + ... + 18309.

It is an arithmetic number, because the mean of its divisors is an integer number (24278562).

Almost surely, 2^145623867 is an apocalyptic number.

145623867 is a deficient number, since it is larger than the sum of its proper divisors (48604629).

145623867 is a wasteful number, since it uses less digits than its factorization.

145623867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15837.

The product of its digits is 241920, while the sum is 42.

The square root of 145623867 is about 12067.4714418556. The cubic root of 145623867 is about 526.1111667289. Note that the first 4 decimals are identical.

The spelling of 145623867 in words is "one hundred forty-five million, six hundred twenty-three thousand, eight hundred sixty-seven".