151384561 has 2 divisors, whose sum is σ = 151384562. Its totient is φ = 151384560.

The previous prime is 151384523. The next prime is 151384591. The reversal of 151384561 is 165483151.

151384561 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., 146894400 + 4490161 = 12120^2 + 2119^2 .

It is a cyclic number.

It is not a de Polignac number, because 151384561 - 2⁷ = 151384433 is a prime.

It is not a weakly prime, because it can be changed into another prime (151384511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75692280 + 75692281.

It is an arithmetic number, because the mean of its divisors is an integer number (75692281).

Almost surely, 2^151384561 is an apocalyptic number.

It is an amenable number.

151384561 is a deficient number, since it is larger than the sum of its proper divisors (1).

151384561 is an equidigital number, since it uses as much as digits as its factorization.

151384561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 34.

The square root of 151384561 is about 12303.8433426308. The cubic root of 151384561 is about 532.9590754095.

The spelling of 151384561 in words is "one hundred fifty-one million, three hundred eighty-four thousand, five hundred sixty-one".