140148147 has 4 divisors (see below), whose sum is σ = 186864200. Its totient is φ = 93432096.

The previous prime is 140148079. The next prime is 140148157. The reversal of 140148147 is 741841041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140148147 - 2¹⁰ = 140147123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140148157) 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, 23358022 + ... + 23358027.

It is an arithmetic number, because the mean of its divisors is an integer number (46716050).

Almost surely, 2^140148147 is an apocalyptic number.

140148147 is a deficient number, since it is larger than the sum of its proper divisors (46716053).

140148147 is an equidigital number, since it uses as much as digits as its factorization.

140148147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46716052.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 140148147 is about 11838.4182642784. The cubic root of 140148147 is about 519.4325009575.

Adding to 140148147 its reverse (741841041), we get a palindrome (881989188).

The spelling of 140148147 in words is "one hundred forty million, one hundred forty-eight thousand, one hundred forty-seven".