15220073 has 8 divisors (see below), whose sum is σ = 16670016. Its totient is φ = 13781200.

The previous prime is 15220069. The next prime is 15220081. The reversal of 15220073 is 37002251.

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

It is not a de Polignac number, because 15220073 - 2² = 15220069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15220003) 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, 263 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (2083752).

Almost surely, 2^15220073 is an apocalyptic number.

It is an amenable number.

15220073 is a deficient number, since it is larger than the sum of its proper divisors (1449943).

15220073 is a wasteful number, since it uses less digits than its factorization.

15220073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 15220073 is about 3901.2911965143. The cubic root of 15220073 is about 247.8214603367.

The spelling of 15220073 in words is "fifteen million, two hundred twenty thousand, seventy-three".