140135601 has 8 divisors (see below), whose sum is σ = 187787200. Its totient is φ = 92953872.

The previous prime is 140135591. The next prime is 140135683. The reversal of 140135601 is 106531041.

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

It is not a de Polignac number, because 140135601 - 2⁷ = 140135473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140135101) 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, 116770 + ... + 117963.

It is an arithmetic number, because the mean of its divisors is an integer number (23473400).

Almost surely, 2^140135601 is an apocalyptic number.

It is an amenable number.

140135601 is a deficient number, since it is larger than the sum of its proper divisors (47651599).

140135601 is a wasteful number, since it uses less digits than its factorization.

140135601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234935.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 140135601 is about 11837.8883674412. Note that the first 3 decimals coincide. The cubic root of 140135601 is about 519.4170007059.

Adding to 140135601 its reverse (106531041), we get a palindrome (246666642).

The spelling of 140135601 in words is "one hundred forty million, one hundred thirty-five thousand, six hundred one".