151021313 has 2 divisors, whose sum is σ = 151021314. Its totient is φ = 151021312.

The previous prime is 151021303. The next prime is 151021333. The reversal of 151021313 is 313120151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149621824 + 1399489 = 12232^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 151021313 - 2⁶ = 151021249 is a prime.

It is a super-3 number, since 3×151021313³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 151021291 and 151021300.

It is not a weakly prime, because it can be changed into another prime (151021303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75510656 + 75510657.

It is an arithmetic number, because the mean of its divisors is an integer number (75510657).

Almost surely, 2^151021313 is an apocalyptic number.

It is an amenable number.

151021313 is a deficient number, since it is larger than the sum of its proper divisors (1).

151021313 is an equidigital number, since it uses as much as digits as its factorization.

151021313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 151021313 is about 12289.0729105169. The cubic root of 151021313 is about 532.5324546920.

Adding to 151021313 its reverse (313120151), we get a palindrome (464141464).

The spelling of 151021313 in words is "one hundred fifty-one million, twenty-one thousand, three hundred thirteen".