140001601501 has 4 divisors (see below), whose sum is σ = 140011739100. Its totient is φ = 139991463904.

The previous prime is 140001601477. The next prime is 140001601541. The reversal of 140001601501 is 105106100041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79755408100 + 60246193401 = 282410^2 + 245451^2 .

It is a cyclic number.

It is not a de Polignac number, because 140001601501 - 2¹¹ = 140001599453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140001601541) 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, 5048056 + ... + 5075713.

It is an arithmetic number, because the mean of its divisors is an integer number (35002934775).

Almost surely, 2^140001601501 is an apocalyptic number.

It is an amenable number.

140001601501 is a deficient number, since it is larger than the sum of its proper divisors (10137599).

140001601501 is a wasteful number, since it uses less digits than its factorization.

140001601501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10137598.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 140001601501 its reverse (105106100041), we get a palindrome (245107701542).

The spelling of 140001601501 in words is "one hundred forty billion, one million, six hundred one thousand, five hundred one".