151002281 has 2 divisors, whose sum is σ = 151002282. Its totient is φ = 151002280.

The previous prime is 151002263. The next prime is 151002287. The reversal of 151002281 is 182200151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150896656 + 105625 = 12284^2 + 325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151002281 is a prime.

It is a super-2 number, since 2×151002281² = 45603377734405922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151002287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75501140 + 75501141.

It is an arithmetic number, because the mean of its divisors is an integer number (75501141).

Almost surely, 2^151002281 is an apocalyptic number.

It is an amenable number.

151002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

151002281 is an equidigital number, since it uses as much as digits as its factorization.

151002281 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 20.

The square root of 151002281 is about 12288.2985396677. The cubic root of 151002281 is about 532.5100834932.

The spelling of 151002281 in words is "one hundred fifty-one million, two thousand, two hundred eighty-one".