151352021 has 2 divisors, whose sum is σ = 151352022. Its totient is φ = 151352020.

The previous prime is 151352009. The next prime is 151352057. The reversal of 151352021 is 120253151.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114276100 + 37075921 = 10690^2 + 6089^2 .

It is a cyclic number.

It is not a de Polignac number, because 151352021 - 2¹⁴ = 151335637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 151351984 and 151352002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151352221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75676010 + 75676011.

It is an arithmetic number, because the mean of its divisors is an integer number (75676011).

Almost surely, 2^151352021 is an apocalyptic number.

It is an amenable number.

151352021 is a deficient number, since it is larger than the sum of its proper divisors (1).

151352021 is an equidigital number, since it uses as much as digits as its factorization.

151352021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 151352021 is about 12302.5209205268. The cubic root of 151352021 is about 532.9208862861.

The spelling of 151352021 in words is "one hundred fifty-one million, three hundred fifty-two thousand, twenty-one".