151515151515251 has 2 divisors, whose sum is σ = 151515151515252. Its totient is φ = 151515151515250.

The previous prime is 151515151515209. The next prime is 151515151515307. The reversal of 151515151515251 is 152515151515151.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151515151515251 is a prime.

It is a super-2 number, since 2×151515151515251² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151515151515151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75757575757625 + 75757575757626.

It is an arithmetic number, because the mean of its divisors is an integer number (75757575757626).

Almost surely, 2^{151515151515251} is an apocalyptic number.

151515151515251 is a deficient number, since it is larger than the sum of its proper divisors (1).

151515151515251 is an equidigital number, since it uses as much as digits as its factorization.

151515151515251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156250, while the sum is 44.

The spelling of 151515151515251 in words is "one hundred fifty-one trillion, five hundred fifteen billion, one hundred fifty-one million, five hundred fifteen thousand, two hundred fifty-one".