140889277 has 2 divisors, whose sum is σ = 140889278. Its totient is φ = 140889276.

The previous prime is 140889241. The next prime is 140889349. The reversal of 140889277 is 772988041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134304921 + 6584356 = 11589^2 + 2566^2 .

It is a cyclic number.

It is not a de Polignac number, because 140889277 - 2²⁷ = 6671549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140889577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70444638 + 70444639.

It is an arithmetic number, because the mean of its divisors is an integer number (70444639).

Almost surely, 2^140889277 is an apocalyptic number.

It is an amenable number.

140889277 is a deficient number, since it is larger than the sum of its proper divisors (1).

140889277 is an equidigital number, since it uses as much as digits as its factorization.

140889277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 140889277 is about 11869.6788920341. The cubic root of 140889277 is about 520.3465109091.

It can be divided in two parts, 1408892 and 77, that added together give a square (1408969 = 1187²).

The spelling of 140889277 in words is "one hundred forty million, eight hundred eighty-nine thousand, two hundred seventy-seven".