140557459 has 8 divisors (see below), whose sum is σ = 169091840. Its totient is φ = 114136776.

The previous prime is 140557381. The next prime is 140557463. The reversal of 140557459 is 954755041.

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 140557459 - 2⁹ = 140556947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140557499) 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, 528279 + ... + 528544.

It is an arithmetic number, because the mean of its divisors is an integer number (21136480).

Almost surely, 2^140557459 is an apocalyptic number.

140557459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

140557459 is a deficient number, since it is larger than the sum of its proper divisors (28534381).

140557459 is a wasteful number, since it uses less digits than its factorization.

140557459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056849.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 140557459 is about 11855.6931050023. The cubic root of 140557459 is about 519.9376885394.

The spelling of 140557459 in words is "one hundred forty million, five hundred fifty-seven thousand, four hundred fifty-nine".