151411661 has 2 divisors, whose sum is σ = 151411662. Its totient is φ = 151411660.

The previous prime is 151411633. The next prime is 151411679. The reversal of 151411661 is 166114151.

151411661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124434025 + 26977636 = 11155^2 + 5194^2 .

It is a cyclic number.

It is not a de Polignac number, because 151411661 - 2⁶ = 151411597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151411661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151411861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75705830 + 75705831.

It is an arithmetic number, because the mean of its divisors is an integer number (75705831).

Almost surely, 2^151411661 is an apocalyptic number.

It is an amenable number.

151411661 is a deficient number, since it is larger than the sum of its proper divisors (1).

151411661 is an equidigital number, since it uses as much as digits as its factorization.

151411661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 26.

The square root of 151411661 is about 12304.9445752510. The cubic root of 151411661 is about 532.9908759425.

The spelling of 151411661 in words is "one hundred fifty-one million, four hundred eleven thousand, six hundred sixty-one".