151727111521 has 2 divisors, whose sum is σ = 151727111522. Its totient is φ = 151727111520.

The previous prime is 151727111509. The next prime is 151727111539. The reversal of 151727111521 is 125111727151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114876934225 + 36850177296 = 338935^2 + 191964^2 .

It is a cyclic number.

It is not a de Polignac number, because 151727111521 - 2³⁵ = 117367373153 is a prime.

It is a super-2 number, since 2×151727111521² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151727111561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75863555760 + 75863555761.

It is an arithmetic number, because the mean of its divisors is an integer number (75863555761).

Almost surely, 2^151727111521 is an apocalyptic number.

It is an amenable number.

151727111521 is a deficient number, since it is larger than the sum of its proper divisors (1).

151727111521 is an equidigital number, since it uses as much as digits as its factorization.

151727111521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4900, while the sum is 34.

Adding to 151727111521 its reverse (125111727151), we get a palindrome (276838838672).

The spelling of 151727111521 in words is "one hundred fifty-one billion, seven hundred twenty-seven million, one hundred eleven thousand, five hundred twenty-one".