140651201 has 2 divisors, whose sum is σ = 140651202. Its totient is φ = 140651200.

The previous prime is 140651111. The next prime is 140651209. The reversal of 140651201 is 102156041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73017025 + 67634176 = 8545^2 + 8224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140651201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140651209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70325600 + 70325601.

It is an arithmetic number, because the mean of its divisors is an integer number (70325601).

Almost surely, 2^140651201 is an apocalyptic number.

It is an amenable number.

140651201 is a deficient number, since it is larger than the sum of its proper divisors (1).

140651201 is an equidigital number, since it uses as much as digits as its factorization.

140651201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 140651201 is about 11859.6459053380. The cubic root of 140651201 is about 520.0532502174.

The spelling of 140651201 in words is "one hundred forty million, six hundred fifty-one thousand, two hundred one".