870155450 has 12 divisors (see below), whose sum is σ = 1618489230. Its totient is φ = 348062160.

The previous prime is 870155449. The next prime is 870155453. The reversal of 870155450 is 54551078.

It can be written as a sum of positive squares in 3 ways, for example, as 524455801 + 345699649 = 22901^2 + 18593^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 870155450.

It is not an unprimeable number, because it can be changed into a prime (870155453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8701505 + ... + 8701604.

Almost surely, 2^870155450 is an apocalyptic number.

870155450 is a deficient number, since it is larger than the sum of its proper divisors (748333780).

870155450 is a wasteful number, since it uses less digits than its factorization.

870155450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403121 (or 17403116 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 870155450 is about 29498.3974140969. The cubic root of 870155450 is about 954.6971253392.

The spelling of 870155450 in words is "eight hundred seventy million, one hundred fifty-five thousand, four hundred fifty".