140546557 has 8 divisors (see below), whose sum is σ = 146323800. Its totient is φ = 134831424.

The previous prime is 140546509. The next prime is 140546561. The reversal of 140546557 is 755645041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29241 + 140517316 = 171^2 + 11854^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140546557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140546507) 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, 10882 + ... + 19987.

It is an arithmetic number, because the mean of its divisors is an integer number (18290475).

Almost surely, 2^140546557 is an apocalyptic number.

It is an amenable number.

140546557 is a deficient number, since it is larger than the sum of its proper divisors (5777243).

140546557 is a wasteful number, since it uses less digits than its factorization.

140546557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31055.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 140546557 is about 11855.2333169786. The cubic root of 140546557 is about 519.9242456213.

The spelling of 140546557 in words is "one hundred forty million, five hundred forty-six thousand, five hundred fifty-seven".