102720272 has 20 divisors (see below), whose sum is σ = 199427340. Its totient is φ = 51255168.

The previous prime is 102720263. The next prime is 102720281. The reversal of 102720272 is 272027201.

It is an interprime number because it is at equal distance from previous prime (102720263) and next prime (102720281).

It can be written as a sum of positive squares in 2 ways, for example, as 64577296 + 38142976 = 8036^2 + 6176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 14450.

It is an arithmetic number, because the mean of its divisors is an integer number (9971367).

Almost surely, 2^102720272 is an apocalyptic number.

It is an amenable number.

102720272 is a deficient number, since it is larger than the sum of its proper divisors (96707068).

102720272 is a wasteful number, since it uses less digits than its factorization.

102720272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130 (or 13124 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 102720272 is about 10135.1009861767. The cubic root of 102720272 is about 468.3300810160.

Adding to 102720272 its reverse (272027201), we get a palindrome (374747473).

The spelling of 102720272 in words is "one hundred two million, seven hundred twenty thousand, two hundred seventy-two".