320272501 has 4 divisors (see below), whose sum is σ = 330603904. Its totient is φ = 309941100.

The previous prime is 320272489. The next prime is 320272543. The reversal of 320272501 is 105272023.

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.

It is not a de Polignac number, because 320272501 - 2⁷ = 320272373 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 (320272801) 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, 5165655 + ... + 5165716.

It is an arithmetic number, because the mean of its divisors is an integer number (82650976).

Almost surely, 2^320272501 is an apocalyptic number.

320272501 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320272501 is a deficient number, since it is larger than the sum of its proper divisors (10331403).

320272501 is a wasteful number, since it uses less digits than its factorization.

320272501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331402.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 320272501 is about 17896.1588336715. The cubic root of 320272501 is about 684.1844778165.

The spelling of 320272501 in words is "three hundred twenty million, two hundred seventy-two thousand, five hundred one".