61041457 has 4 divisors (see below), whose sum is σ = 61173760. Its totient is φ = 60909156.

The previous prime is 61041439. The next prime is 61041479. The reversal of 61041457 is 75414016.

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 61041457 - 2⁷ = 61041329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61041427) 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, 65457 + ... + 66382.

It is an arithmetic number, because the mean of its divisors is an integer number (15293440).

Almost surely, 2^61041457 is an apocalyptic number.

It is an amenable number.

61041457 is a deficient number, since it is larger than the sum of its proper divisors (132303).

61041457 is a wasteful number, since it uses less digits than its factorization.

61041457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132302.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 61041457 is about 7812.9032375936. The cubic root of 61041457 is about 393.7388759098.

The spelling of 61041457 in words is "sixty-one million, forty-one thousand, four hundred fifty-seven".