140261771 has 8 divisors (see below), whose sum is σ = 154265664. Its totient is φ = 126717120.

The previous prime is 140261761. The next prime is 140261789. The reversal of 140261771 is 177162041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140261771 - 2¹⁴ = 140245387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140261761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114170 + ... + 115391.

It is an arithmetic number, because the mean of its divisors is an integer number (19283208).

Almost surely, 2^140261771 is an apocalyptic number.

140261771 is a deficient number, since it is larger than the sum of its proper divisors (14003893).

140261771 is a wasteful number, since it uses less digits than its factorization.

140261771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229621.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 140261771 is about 11843.2162439094. The cubic root of 140261771 is about 519.5728383003.

The spelling of 140261771 in words is "one hundred forty million, two hundred sixty-one thousand, seven hundred seventy-one".