140547001 has 4 divisors (see below), whose sum is σ = 160625152. Its totient is φ = 120468852.

The previous prime is 140546999. The next prime is 140547013. The reversal of 140547001 is 100745041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100745041 = 6367 ⋅15823.

It is not a de Polignac number, because 140547001 - 2¹ = 140546999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140547401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10039065 + ... + 10039078.

It is an arithmetic number, because the mean of its divisors is an integer number (40156288).

Almost surely, 2^140547001 is an apocalyptic number.

It is an amenable number.

140547001 is a deficient number, since it is larger than the sum of its proper divisors (20078151).

140547001 is an equidigital number, since it uses as much as digits as its factorization.

140547001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20078150.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 140547001 is about 11855.2520428711. The cubic root of 140547001 is about 519.9247931175.

The spelling of 140547001 in words is "one hundred forty million, five hundred forty-seven thousand, one".