151791001 has 2 divisors, whose sum is σ = 151791002. Its totient is φ = 151791000.

The previous prime is 151790999. The next prime is 151791043. The reversal of 151791001 is 100197151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140067225 + 11723776 = 11835^2 + 3424^2 .

It is a cyclic number.

It is not a de Polignac number, because 151791001 - 2¹ = 151790999 is a prime.

Together with 151790999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (151791071) 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, 75895500 + 75895501.

It is an arithmetic number, because the mean of its divisors is an integer number (75895501).

Almost surely, 2^151791001 is an apocalyptic number.

It is an amenable number.

151791001 is a deficient number, since it is larger than the sum of its proper divisors (1).

151791001 is an equidigital number, since it uses as much as digits as its factorization.

151791001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 25.

The square root of 151791001 is about 12320.3490616135. The cubic root of 151791001 is about 533.4356152357.

The spelling of 151791001 in words is "one hundred fifty-one million, seven hundred ninety-one thousand, one".