61417457 has 4 divisors (see below), whose sum is σ = 61433460. Its totient is φ = 61401456.

The previous prime is 61417453. The next prime is 61417469. The reversal of 61417457 is 75471416.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 30459361 + 30958096 = 5519^2 + 5564^2 .

It is a cyclic number.

It is not a de Polignac number, because 61417457 - 2² = 61417453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61417451) 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, 1583 + ... + 11195.

It is an arithmetic number, because the mean of its divisors is an integer number (15358365).

Almost surely, 2^61417457 is an apocalyptic number.

It is an amenable number.

61417457 is a deficient number, since it is larger than the sum of its proper divisors (16003).

61417457 is an equidigital number, since it uses as much as digits as its factorization.

61417457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16002.

The product of its digits is 23520, while the sum is 35.

The square root of 61417457 is about 7836.9290541640. The cubic root of 61417457 is about 394.5456657299.

The spelling of 61417457 in words is "sixty-one million, four hundred seventeen thousand, four hundred fifty-seven".