151021441 has 2 divisors, whose sum is σ = 151021442. Its totient is φ = 151021440.

The previous prime is 151021439. The next prime is 151021447. The reversal of 151021441 is 144120151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148474225 + 2547216 = 12185^2 + 1596^2 .

It is a cyclic number.

It is not a de Polignac number, because 151021441 - 2¹ = 151021439 is a prime.

It is a super-3 number, since 3×151021441³ (a number of 26 digits) contains 333 as substring.

Together with 151021439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (151021447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75510720 + 75510721.

It is an arithmetic number, because the mean of its divisors is an integer number (75510721).

Almost surely, 2^151021441 is an apocalyptic number.

It is an amenable number.

151021441 is a deficient number, since it is larger than the sum of its proper divisors (1).

151021441 is an equidigital number, since it uses as much as digits as its factorization.

151021441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 151021441 is about 12289.0781183944. The cubic root of 151021441 is about 532.5326051435.

Adding to 151021441 its reverse (144120151), we get a palindrome (295141592).

The spelling of 151021441 in words is "one hundred fifty-one million, twenty-one thousand, four hundred forty-one".