601561279 has 8 divisors (see below), whose sum is σ = 659548800. Its totient is φ = 544123800.

The previous prime is 601561277. The next prime is 601561291. The reversal of 601561279 is 972165106.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 601561279 - 2¹ = 601561277 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 (601561277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135217 + ... + 139594.

It is an arithmetic number, because the mean of its divisors is an integer number (82443600).

Almost surely, 2^601561279 is an apocalyptic number.

601561279 is a deficient number, since it is larger than the sum of its proper divisors (57987521).

601561279 is a wasteful number, since it uses less digits than its factorization.

601561279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275021.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 601561279 is about 24526.7461967543. The cubic root of 601561279 is about 844.1636059490.

The spelling of 601561279 in words is "six hundred one million, five hundred sixty-one thousand, two hundred seventy-nine".