140854451 has 4 divisors (see below), whose sum is σ = 140881752. Its totient is φ = 140827152.

The previous prime is 140854447. The next prime is 140854453. The reversal of 140854451 is 154458041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154458041 = 23 ⋅6715567.

It is a cyclic number.

It is not a de Polignac number, because 140854451 - 2² = 140854447 is a prime.

It is a super-2 number, since 2×140854451² = 39679952733022802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140854453) 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, 3290 + ... + 17103.

It is an arithmetic number, because the mean of its divisors is an integer number (35220438).

Almost surely, 2^140854451 is an apocalyptic number.

140854451 is a deficient number, since it is larger than the sum of its proper divisors (27301).

140854451 is an equidigital number, since it uses as much as digits as its factorization.

140854451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27300.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 140854451 is about 11868.2117861117. The cubic root of 140854451 is about 520.3036330755.

The spelling of 140854451 in words is "one hundred forty million, eight hundred fifty-four thousand, four hundred fifty-one".