140040251 has 8 divisors (see below), whose sum is σ = 153064464. Its totient is φ = 127337760.

The previous prime is 140040211. The next prime is 140040253. The reversal of 140040251 is 152040041.

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 140040251 - 2²⁶ = 72931387 is a prime.

It is a super-2 number, since 2×140040251² = 39222543800286002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140040253) 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, 79520 + ... + 81261.

It is an arithmetic number, because the mean of its divisors is an integer number (19133058).

Almost surely, 2^140040251 is an apocalyptic number.

140040251 is a deficient number, since it is larger than the sum of its proper divisors (13024213).

140040251 is a wasteful number, since it uses less digits than its factorization.

140040251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160861.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 140040251 is about 11833.8603591558. The cubic root of 140040251 is about 519.2991680550.

Adding to 140040251 its reverse (152040041), we get a palindrome (292080292).

The spelling of 140040251 in words is "one hundred forty million, forty thousand, two hundred fifty-one".