220712153 has 4 divisors (see below), whose sum is σ = 220865508. Its totient is φ = 220558800.

The previous prime is 220712147. The next prime is 220712159. The reversal of 220712153 is 351217022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (220712147) and next prime (220712159).

It can be written as a sum of positive squares in 2 ways, for example, as 112614544 + 108097609 = 10612^2 + 10397^2 .

It is a cyclic number.

It is not a de Polignac number, because 220712153 - 2¹⁰ = 220711129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220712159) 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, 74498 + ... + 77403.

It is an arithmetic number, because the mean of its divisors is an integer number (55216377).

Almost surely, 2^220712153 is an apocalyptic number.

It is an amenable number.

220712153 is a deficient number, since it is larger than the sum of its proper divisors (153355).

220712153 is a wasteful number, since it uses less digits than its factorization.

220712153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153354.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 220712153 is about 14856.3842505503. The cubic root of 220712153 is about 604.3317558543.

Adding to 220712153 its reverse (351217022), we get a palindrome (571929175).

The spelling of 220712153 in words is "two hundred twenty million, seven hundred twelve thousand, one hundred fifty-three".