601423731 has 16 divisors (see below), whose sum is σ = 891625600. Its totient is φ = 400666824.

The previous prime is 601423729. The next prime is 601423759. The reversal of 601423731 is 137324106.

601423731 is a `hidden beast` number, since 601 + 4 + 23 + 7 + 31 = 666.

It is not a de Polignac number, because 601423731 - 2¹ = 601423729 is a prime.

It is a super-2 number, since 2×601423731² = 723421008419920722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 601423695 and 601423704.

It is not an unprimeable number, because it can be changed into a prime (601423831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35580 + ... + 49686.

It is an arithmetic number, because the mean of its divisors is an integer number (55726600).

Almost surely, 2^601423731 is an apocalyptic number.

601423731 is a deficient number, since it is larger than the sum of its proper divisors (290201869).

601423731 is a wasteful number, since it uses less digits than its factorization.

601423731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15695 (or 15689 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 601423731 is about 24523.9419955276. The cubic root of 601423731 is about 844.0992612343.

Adding to 601423731 its reverse (137324106), we get a palindrome (738747837).

The spelling of 601423731 in words is "six hundred one million, four hundred twenty-three thousand, seven hundred thirty-one".