61400453 has 8 divisors (see below), whose sum is σ = 63660000. Its totient is φ = 59150448.

The previous prime is 61400387. The next prime is 61400483. The reversal of 61400453 is 35400416.

It is a happy number.

61400453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61400453 - 2²⁴ = 44623237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61400483) 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, 12350 + ... + 16592.

It is an arithmetic number, because the mean of its divisors is an integer number (7957500).

Almost surely, 2^61400453 is an apocalyptic number.

It is an amenable number.

61400453 is a deficient number, since it is larger than the sum of its proper divisors (2259547).

61400453 is a wasteful number, since it uses less digits than its factorization.

61400453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 61400453 is about 7835.8441153458. The cubic root of 61400453 is about 394.5092511443.

Adding to 61400453 its reverse (35400416), we get a palindrome (96800869).

The spelling of 61400453 in words is "sixty-one million, four hundred thousand, four hundred fifty-three".