140001577 has 2 divisors, whose sum is σ = 140001578. Its totient is φ = 140001576.

The previous prime is 140001541. The next prime is 140001583. The reversal of 140001577 is 775100041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 40081561 = 9996^2 + 6331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140001577 is a prime.

It is not a weakly prime, because it can be changed into another prime (140001677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70000788 + 70000789.

It is an arithmetic number, because the mean of its divisors is an integer number (70000789).

Almost surely, 2^140001577 is an apocalyptic number.

It is an amenable number.

140001577 is a deficient number, since it is larger than the sum of its proper divisors (1).

140001577 is an equidigital number, since it uses as much as digits as its factorization.

140001577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 140001577 is about 11832.2262064246. The cubic root of 140001577 is about 519.2513598357.

The spelling of 140001577 in words is "one hundred forty million, one thousand, five hundred seventy-seven".