802156126 has 4 divisors (see below), whose sum is σ = 1203234192. Its totient is φ = 401078062.

The previous prime is 802156063. The next prime is 802156127. The reversal of 802156126 is 621651208.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802156127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200539030 + ... + 200539033.

It is an arithmetic number, because the mean of its divisors is an integer number (300808548).

Almost surely, 2^802156126 is an apocalyptic number.

802156126 is a deficient number, since it is larger than the sum of its proper divisors (401078066).

802156126 is a wasteful number, since it uses less digits than its factorization.

802156126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401078065.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 802156126 is about 28322.3608832315. The cubic root of 802156126 is about 929.1510061303.

The spelling of 802156126 in words is "eight hundred two million, one hundred fifty-six thousand, one hundred twenty-six".