150655861 has 2 divisors, whose sum is σ = 150655862. Its totient is φ = 150655860.

The previous prime is 150655859. The next prime is 150655889. The reversal of 150655861 is 168556051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146555236 + 4100625 = 12106^2 + 2025^2 .

It is a cyclic number.

It is not a de Polignac number, because 150655861 - 2¹ = 150655859 is a prime.

Together with 150655859, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 150655861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150655831) 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, 75327930 + 75327931.

It is an arithmetic number, because the mean of its divisors is an integer number (75327931).

Almost surely, 2^150655861 is an apocalyptic number.

It is an amenable number.

150655861 is a deficient number, since it is larger than the sum of its proper divisors (1).

150655861 is an equidigital number, since it uses as much as digits as its factorization.

150655861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 150655861 is about 12274.1949226823. The cubic root of 150655861 is about 532.1025545691.

The spelling of 150655861 in words is "one hundred fifty million, six hundred fifty-five thousand, eight hundred sixty-one".