270151981 has 24 divisors (see below), whose sum is σ = 319713912. Its totient is φ = 227251200.

The previous prime is 270151963. The next prime is 270152017. The reversal of 270151981 is 189151072.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75625 + 270076356 = 275^2 + 16434^2 .

It is not a de Polignac number, because 270151981 - 2¹¹ = 270149933 is a prime.

It is a super-2 number, since 2×270151981² = 145964185676448722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270151901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124401 + ... + 126553.

It is an arithmetic number, because the mean of its divisors is an integer number (13321413).

Almost surely, 2^270151981 is an apocalyptic number.

It is an amenable number.

270151981 is a deficient number, since it is larger than the sum of its proper divisors (49561931).

270151981 is a wasteful number, since it uses less digits than its factorization.

270151981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 270151981 is about 16436.3007091012. The cubic root of 270151981 is about 646.4516557952.

It can be divided in two parts, 270 and 151981, that added together give a palindrome (152251).

The spelling of 270151981 in words is "two hundred seventy million, one hundred fifty-one thousand, nine hundred eighty-one".