140513451 has 16 divisors (see below), whose sum is σ = 202083840. Its totient is φ = 86332320.

The previous prime is 140513447. The next prime is 140513489. The reversal of 140513451 is 154315041.

It is a happy number.

It is not a de Polignac number, because 140513451 - 2² = 140513447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140513411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25536 + ... + 30546.

It is an arithmetic number, because the mean of its divisors is an integer number (12630240).

Almost surely, 2^140513451 is an apocalyptic number.

140513451 is a deficient number, since it is larger than the sum of its proper divisors (61570389).

140513451 is a wasteful number, since it uses less digits than its factorization.

140513451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 140513451 is about 11853.8369737398. The cubic root of 140513451 is about 519.8834193782.

Adding to 140513451 its reverse (154315041), we get a palindrome (294828492).

It can be divided in two parts, 140 and 513451, that added together give a triangular number (513591 = T₁₀₁₃).

The spelling of 140513451 in words is "one hundred forty million, five hundred thirteen thousand, four hundred fifty-one".