150711661 has 2 divisors, whose sum is σ = 150711662. Its totient is φ = 150711660.

The previous prime is 150711643. The next prime is 150711707. The reversal of 150711661 is 166117051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89965225 + 60746436 = 9485^2 + 7794^2 .

It is an emirp because it is prime and its reverse (166117051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150711661 - 2⁹ = 150711149 is a prime.

It is a super-2 number, since 2×150711661² = 45428009522757842, which contains 22 as substring.

It is equal to p_8482141 and since 150711661 and 8482141 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150711761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75355830 + 75355831.

It is an arithmetic number, because the mean of its divisors is an integer number (75355831).

Almost surely, 2^150711661 is an apocalyptic number.

It is an amenable number.

150711661 is a deficient number, since it is larger than the sum of its proper divisors (1).

150711661 is an equidigital number, since it uses as much as digits as its factorization.

150711661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 150711661 is about 12276.4677737532. The cubic root of 150711661 is about 532.1682399384.

The spelling of 150711661 in words is "one hundred fifty million, seven hundred eleven thousand, six hundred sixty-one".