61451059 has 4 divisors (see below), whose sum is σ = 61485480. Its totient is φ = 61416640.

The previous prime is 61451057. The next prime is 61451113. The reversal of 61451059 is 95015416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61451059 - 2¹ = 61451057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61451059.

It is not an unprimeable number, because it can be changed into a prime (61451051) 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, 14377 + ... + 18154.

It is an arithmetic number, because the mean of its divisors is an integer number (15371370).

Almost surely, 2^61451059 is an apocalyptic number.

61451059 is a deficient number, since it is larger than the sum of its proper divisors (34421).

61451059 is a wasteful number, since it uses less digits than its factorization.

61451059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34420.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 61451059 is about 7839.0725854530. The cubic root of 61451059 is about 394.6176056803.

The spelling of 61451059 in words is "sixty-one million, four hundred fifty-one thousand, fifty-nine".