79227142 has 4 divisors (see below), whose sum is σ = 118840716. Its totient is φ = 39613570.

The previous prime is 79227077. The next prime is 79227143. The reversal of 79227142 is 24172297.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 79227098 and 79227107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79227143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19806784 + ... + 19806787.

It is an arithmetic number, because the mean of its divisors is an integer number (29710179).

Almost surely, 2^79227142 is an apocalyptic number.

79227142 is a deficient number, since it is larger than the sum of its proper divisors (39613574).

79227142 is a wasteful number, since it uses less digits than its factorization.

79227142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39613573.

The product of its digits is 14112, while the sum is 34.

The square root of 79227142 is about 8900.9629816105. The cubic root of 79227142 is about 429.4948855191.

The spelling of 79227142 in words is "seventy-nine million, two hundred twenty-seven thousand, one hundred forty-two".