140557229977 has 4 divisors (see below), whose sum is σ = 140558630436. Its totient is φ = 140555829520.

The previous prime is 140557229959. The next prime is 140557229987. The reversal of 140557229977 is 779922755041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61764178576 + 78793051401 = 248524^2 + 280701^2 .

It is a cyclic number.

It is not a de Polignac number, because 140557229977 - 2⁷ = 140557229849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140557229987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536998 + ... + 754639.

It is an arithmetic number, because the mean of its divisors is an integer number (35139657609).

Almost surely, 2^140557229977 is an apocalyptic number.

It is an amenable number.

140557229977 is a deficient number, since it is larger than the sum of its proper divisors (1400459).

140557229977 is a wasteful number, since it uses less digits than its factorization.

140557229977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400458.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 140557229977 in words is "one hundred forty billion, five hundred fifty-seven million, two hundred twenty-nine thousand, nine hundred seventy-seven".