150877681 has 2 divisors, whose sum is σ = 150877682. Its totient is φ = 150877680.

The previous prime is 150877673. The next prime is 150877693. The reversal of 150877681 is 186778051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 74909025 = 8716^2 + 8655^2 .

It is a cyclic number.

It is not a de Polignac number, because 150877681 - 2³ = 150877673 is a prime.

It is a super-2 number, since 2×150877681² = 45528149247875522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150877781) 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 as a sum of consecutive naturals, namely, 75438840 + 75438841.

It is an arithmetic number, because the mean of its divisors is an integer number (75438841).

Almost surely, 2^150877681 is an apocalyptic number.

It is an amenable number.

150877681 is a deficient number, since it is larger than the sum of its proper divisors (1).

150877681 is an equidigital number, since it uses as much as digits as its factorization.

150877681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 43.

The square root of 150877681 is about 12283.2276295768. The cubic root of 150877681 is about 532.3635757403.

The spelling of 150877681 in words is "one hundred fifty million, eight hundred seventy-seven thousand, six hundred eighty-one".