151043261 has 2 divisors, whose sum is σ = 151043262. Its totient is φ = 151043260.

The previous prime is 151043239. The next prime is 151043297. The reversal of 151043261 is 162340151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123899161 + 27144100 = 11131^2 + 5210^2 .

It is a cyclic number.

It is not a de Polignac number, because 151043261 - 2⁶ = 151043197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151043161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75521630 + 75521631.

It is an arithmetic number, because the mean of its divisors is an integer number (75521631).

Almost surely, 2^151043261 is an apocalyptic number.

It is an amenable number.

151043261 is a deficient number, since it is larger than the sum of its proper divisors (1).

151043261 is an equidigital number, since it uses as much as digits as its factorization.

151043261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 151043261 is about 12289.9658665108. The cubic root of 151043261 is about 532.5582511749.

The spelling of 151043261 in words is "one hundred fifty-one million, forty-three thousand, two hundred sixty-one".