140011451 has 4 divisors (see below), whose sum is σ = 140248152. Its totient is φ = 139774752.

The previous prime is 140011429. The next prime is 140011457. The reversal of 140011451 is 154110041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154110041 = 887 ⋅173743.

It is a cyclic number.

It is not a de Polignac number, because 140011451 - 2¹⁴ = 139995067 is a prime.

It is a super-2 number, since 2×140011451² = 39206412822250802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140011457) 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, 117461 + ... + 118646.

It is an arithmetic number, because the mean of its divisors is an integer number (35062038).

Almost surely, 2^140011451 is an apocalyptic number.

140011451 is a deficient number, since it is larger than the sum of its proper divisors (236701).

140011451 is an equidigital number, since it uses as much as digits as its factorization.

140011451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236700.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 140011451 is about 11832.6434493734. The cubic root of 140011451 is about 519.2635667634.

Adding to 140011451 its reverse (154110041), we get a palindrome (294121492).

The spelling of 140011451 in words is "one hundred forty million, eleven thousand, four hundred fifty-one".