395531501 has 4 divisors (see below), whose sum is σ = 404729952. Its totient is φ = 386333052.

The previous prime is 395531489. The next prime is 395531533. The reversal of 395531501 is 105135593.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 105135593 = 71 ⋅1480783.

It is a cyclic number.

It is not a de Polignac number, because 395531501 - 2²⁶ = 328422637 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 (395531581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4599161 + ... + 4599246.

It is an arithmetic number, because the mean of its divisors is an integer number (101182488).

Almost surely, 2^395531501 is an apocalyptic number.

It is an amenable number.

395531501 is a deficient number, since it is larger than the sum of its proper divisors (9198451).

395531501 is an equidigital number, since it uses as much as digits as its factorization.

395531501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198450.

The product of its (nonzero) digits is 10125, while the sum is 32.

The square root of 395531501 is about 19887.9737781404. The cubic root of 395531501 is about 734.0523372165.

The spelling of 395531501 in words is "three hundred ninety-five million, five hundred thirty-one thousand, five hundred one".