150661613 has 2 divisors, whose sum is σ = 150661614. Its totient is φ = 150661612.

The previous prime is 150661591. The next prime is 150661673. The reversal of 150661613 is 316166051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149499529 + 1162084 = 12227^2 + 1078^2 .

It is a cyclic number.

It is not a de Polignac number, because 150661613 - 2⁶ = 150661549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150661673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75330806 + 75330807.

It is an arithmetic number, because the mean of its divisors is an integer number (75330807).

Almost surely, 2^150661613 is an apocalyptic number.

It is an amenable number.

150661613 is a deficient number, since it is larger than the sum of its proper divisors (1).

150661613 is an equidigital number, since it uses as much as digits as its factorization.

150661613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 150661613 is about 12274.4292331660. The cubic root of 150661613 is about 532.1093263268.

The spelling of 150661613 in words is "one hundred fifty million, six hundred sixty-one thousand, six hundred thirteen".