140860261 has 2 divisors, whose sum is σ = 140860262. Its totient is φ = 140860260.

The previous prime is 140860253. The next prime is 140860301. The reversal of 140860261 is 162068041.

140860261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82628100 + 58232161 = 9090^2 + 7631^2 .

It is a cyclic number.

It is not a de Polignac number, because 140860261 - 2³ = 140860253 is a prime.

It is a super-2 number, since 2×140860261² = 39683226257976242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140860201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70430130 + 70430131.

It is an arithmetic number, because the mean of its divisors is an integer number (70430131).

Almost surely, 2^140860261 is an apocalyptic number.

It is an amenable number.

140860261 is a deficient number, since it is larger than the sum of its proper divisors (1).

140860261 is an equidigital number, since it uses as much as digits as its factorization.

140860261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 140860261 is about 11868.4565550875. The cubic root of 140860261 is about 520.3107868491.

The spelling of 140860261 in words is "one hundred forty million, eight hundred sixty thousand, two hundred sixty-one".