70661459 has 8 divisors (see below), whose sum is σ = 77723760. Its totient is φ = 64236480.

The previous prime is 70661447. The next prime is 70661509. The reversal of 70661459 is 95416607.

It is not a de Polignac number, because 70661459 - 2⁴ = 70661443 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 (70661659) 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, 25214 + ... + 27875.

It is an arithmetic number, because the mean of its divisors is an integer number (9715470).

Almost surely, 2^70661459 is an apocalyptic number.

70661459 is a deficient number, since it is larger than the sum of its proper divisors (7062301).

70661459 is an equidigital number, since it uses as much as digits as its factorization.

70661459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53122 (or 53100 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 70661459 is about 8406.0370567825. The cubic root of 70661459 is about 413.4225868794.

The spelling of 70661459 in words is "seventy million, six hundred sixty-one thousand, four hundred fifty-nine".