802149131 has 16 divisors (see below), whose sum is σ = 975623616. Its totient is φ = 643808256.

The previous prime is 802149121. The next prime is 802149157. The reversal of 802149131 is 131941208.

It is a de Polignac number, because none of the positive numbers 2^k-802149131 is a prime.

It is a super-2 number, since 2×802149131² = 1286886456728110322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 802149094 and 802149103.

It is not an unprimeable number, because it can be changed into a prime (802149121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6335 + ... + 40551.

It is an arithmetic number, because the mean of its divisors is an integer number (60976476).

Almost surely, 2^802149131 is an apocalyptic number.

802149131 is a deficient number, since it is larger than the sum of its proper divisors (173474485).

802149131 is a wasteful number, since it uses less digits than its factorization.

802149131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34438.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 802149131 is about 28322.2373939631. The cubic root of 802149131 is about 929.1483053135.

The spelling of 802149131 in words is "eight hundred two million, one hundred forty-nine thousand, one hundred thirty-one".