140455401 has 4 divisors (see below), whose sum is σ = 187273872. Its totient is φ = 93636932.

The previous prime is 140455397. The next prime is 140455417. The reversal of 140455401 is 104554041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140455401 - 2² = 140455397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140455481) 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, 23409231 + ... + 23409236.

It is an arithmetic number, because the mean of its divisors is an integer number (46818468).

Almost surely, 2^140455401 is an apocalyptic number.

It is an amenable number.

140455401 is a deficient number, since it is larger than the sum of its proper divisors (46818471).

140455401 is an equidigital number, since it uses as much as digits as its factorization.

140455401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46818470.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 140455401 is about 11851.3881465422. The cubic root of 140455401 is about 519.8118167684.

The spelling of 140455401 in words is "one hundred forty million, four hundred fifty-five thousand, four hundred one".