140760661 has 2 divisors, whose sum is σ = 140760662. Its totient is φ = 140760660.

The previous prime is 140760647. The next prime is 140760671. The reversal of 140760661 is 166067041.

140760661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100120036 + 40640625 = 10006^2 + 6375^2 .

It is a cyclic number.

It is not a de Polignac number, because 140760661 - 2¹¹ = 140758613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140760601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70380330 + 70380331.

It is an arithmetic number, because the mean of its divisors is an integer number (70380331).

Almost surely, 2^140760661 is an apocalyptic number.

It is an amenable number.

140760661 is a deficient number, since it is larger than the sum of its proper divisors (1).

140760661 is an equidigital number, since it uses as much as digits as its factorization.

140760661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 140760661 is about 11864.2598167774. The cubic root of 140760661 is about 520.1881235013.

The spelling of 140760661 in words is "one hundred forty million, seven hundred sixty thousand, six hundred sixty-one".