140542757 has 8 divisors (see below), whose sum is σ = 148920192. Its totient is φ = 132177600.

The previous prime is 140542693. The next prime is 140542799. The reversal of 140542757 is 757245041.

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 140542757 - 2⁶ = 140542693 is a prime.

It is a super-2 number, since 2×140542757² = 39504533090322098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140542657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32132 + ... + 36242.

It is an arithmetic number, because the mean of its divisors is an integer number (18615024).

Almost surely, 2^140542757 is an apocalyptic number.

140542757 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

140542757 is a deficient number, since it is larger than the sum of its proper divisors (8377435).

140542757 is a wasteful number, since it uses less digits than its factorization.

140542757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6139.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 140542757 is about 11855.0730491212. The cubic root of 140542757 is about 519.9195597958.

Adding to 140542757 its reverse (757245041), we get a palindrome (897787798).

The spelling of 140542757 in words is "one hundred forty million, five hundred forty-two thousand, seven hundred fifty-seven".