140623001 has 8 divisors (see below), whose sum is σ = 146059200. Its totient is φ = 135226000.

The previous prime is 140622961. The next prime is 140623003. The reversal of 140623001 is 100326041.

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

It is a cyclic number.

It is not a de Polignac number, because 140623001 - 2²² = 136428697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140623003) 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, 2381 + ... + 16938.

It is an arithmetic number, because the mean of its divisors is an integer number (18257400).

Almost surely, 2^140623001 is an apocalyptic number.

It is an amenable number.

140623001 is a deficient number, since it is larger than the sum of its proper divisors (5436199).

140623001 is a wasteful number, since it uses less digits than its factorization.

140623001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19599.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 140623001 is about 11858.4569400913. The cubic root of 140623001 is about 520.0184916994.

Adding to 140623001 its reverse (100326041), we get a palindrome (240949042).

The spelling of 140623001 in words is "one hundred forty million, six hundred twenty-three thousand, one".