151147181 has 2 divisors, whose sum is σ = 151147182. Its totient is φ = 151147180.

The previous prime is 151147169. The next prime is 151147189. The reversal of 151147181 is 181741151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89775625 + 61371556 = 9475^2 + 7834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151147181 is a prime.

It is a super-2 number, since 2×151147181² = 45690940648493522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151147189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75573590 + 75573591.

It is an arithmetic number, because the mean of its divisors is an integer number (75573591).

Almost surely, 2^151147181 is an apocalyptic number.

It is an amenable number.

151147181 is a deficient number, since it is larger than the sum of its proper divisors (1).

151147181 is an equidigital number, since it uses as much as digits as its factorization.

151147181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 29.

The square root of 151147181 is about 12294.1929788010. The cubic root of 151147181 is about 532.6803591626.

The spelling of 151147181 in words is "one hundred fifty-one million, one hundred forty-seven thousand, one hundred eighty-one".