151904161 has 2 divisors, whose sum is σ = 151904162. Its totient is φ = 151904160.

The previous prime is 151904153. The next prime is 151904177. The reversal of 151904161 is 161409151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145950561 + 5953600 = 12081^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 151904161 - 2³ = 151904153 is a prime.

It is a super-2 number, since 2×151904161² = 46149748258227842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151904191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75952080 + 75952081.

It is an arithmetic number, because the mean of its divisors is an integer number (75952081).

Almost surely, 2^151904161 is an apocalyptic number.

It is an amenable number.

151904161 is a deficient number, since it is larger than the sum of its proper divisors (1).

151904161 is an equidigital number, since it uses as much as digits as its factorization.

151904161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 151904161 is about 12324.9406083762. The cubic root of 151904161 is about 533.5681408350.

It can be divided in two parts, 15 and 1904161, that added together give a triangular number (1904176 = T₁₉₅₁).

The spelling of 151904161 in words is "one hundred fifty-one million, nine hundred four thousand, one hundred sixty-one".