611728142 has 16 divisors (see below), whose sum is σ = 972378000. Its totient is φ = 287818560.

The previous prime is 611728133. The next prime is 611728147. The reversal of 611728142 is 241827116.

It is a happy number.

611728142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×611728142² = 748422639429544328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 611728099 and 611728108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611728147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48359 + ... + 59682.

It is an arithmetic number, because the mean of its divisors is an integer number (60773625).

Almost surely, 2^611728142 is an apocalyptic number.

611728142 is a deficient number, since it is larger than the sum of its proper divisors (360649858).

611728142 is a wasteful number, since it uses less digits than its factorization.

611728142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108211.

The product of its digits is 5376, while the sum is 32.

The square root of 611728142 is about 24733.1385392150. The cubic root of 611728142 is about 848.8927414083.

The spelling of 611728142 in words is "six hundred eleven million, seven hundred twenty-eight thousand, one hundred forty-two".