781150252 has 12 divisors (see below), whose sum is σ = 1392806016. Its totient is φ = 383205680.

The previous prime is 781150247. The next prime is 781150259. The reversal of 781150252 is 252051187.

781150252 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 2×781150252² = 1220391432399327008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (781150259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842124 + ... + 1842547.

It is an arithmetic number, because the mean of its divisors is an integer number (116067168).

Almost surely, 2^781150252 is an apocalyptic number.

It is an amenable number.

781150252 is a deficient number, since it is larger than the sum of its proper divisors (611655764).

781150252 is a wasteful number, since it uses less digits than its factorization.

781150252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684728 (or 3684726 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 781150252 is about 27949.0653153196. The cubic root of 781150252 is about 920.9686756826.

The spelling of 781150252 in words is "seven hundred eighty-one million, one hundred fifty thousand, two hundred fifty-two".