151301881 has 4 divisors (see below), whose sum is σ = 151779492. Its totient is φ = 150824272.

The previous prime is 151301851. The next prime is 151301911. The reversal of 151301881 is 188103151.

151301881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (151301851) and next prime (151301911).

It can be written as a sum of positive squares in 2 ways, for example, as 9096256 + 142205625 = 3016^2 + 11925^2 .

It is a cyclic number.

It is not a de Polignac number, because 151301881 - 2⁷ = 151301753 is a prime.

It is a super-2 number, since 2×151301881² = 45784518388276322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151301851) 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, 238330 + ... + 238963.

It is an arithmetic number, because the mean of its divisors is an integer number (37944873).

Almost surely, 2^151301881 is an apocalyptic number.

It is an amenable number.

151301881 is a deficient number, since it is larger than the sum of its proper divisors (477611).

151301881 is an equidigital number, since it uses as much as digits as its factorization.

151301881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477610.

The product of its (nonzero) digits is 960, while the sum is 28.

The square root of 151301881 is about 12300.4829579980. The cubic root of 151301881 is about 532.8620309891.

The spelling of 151301881 in words is "one hundred fifty-one million, three hundred one thousand, eight hundred eighty-one".