140420147 has 8 divisors (see below), whose sum is σ = 162414336. Its totient is φ = 118909512.

The previous prime is 140420107. The next prime is 140420191. The reversal of 140420147 is 741024041.

It is a happy number.

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 140420147 - 2¹² = 140416051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140420107) 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, 120263 + ... + 121424.

It is an arithmetic number, because the mean of its divisors is an integer number (20301792).

Almost surely, 2^140420147 is an apocalyptic number.

140420147 is a deficient number, since it is larger than the sum of its proper divisors (21994189).

140420147 is an equidigital number, since it uses as much as digits as its factorization.

140420147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241777.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 140420147 is about 11849.9007168837. The cubic root of 140420147 is about 519.7683225842.

Adding to 140420147 its reverse (741024041), we get a palindrome (881444188).

The spelling of 140420147 in words is "one hundred forty million, four hundred twenty thousand, one hundred forty-seven".