151125212281 has 2 divisors, whose sum is σ = 151125212282. Its totient is φ = 151125212280.

The previous prime is 151125212221. The next prime is 151125212299. The reversal of 151125212281 is 182212521151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93457992681 + 57667219600 = 305709^2 + 240140^2 .

It is a cyclic number.

It is not a de Polignac number, because 151125212281 - 2²³ = 151116823673 is a prime.

It is a super-2 number, since 2×151125212281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151125212201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75562606140 + 75562606141.

It is an arithmetic number, because the mean of its divisors is an integer number (75562606141).

Almost surely, 2^151125212281 is an apocalyptic number.

It is an amenable number.

151125212281 is a deficient number, since it is larger than the sum of its proper divisors (1).

151125212281 is an equidigital number, since it uses as much as digits as its factorization.

151125212281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 31.

The spelling of 151125212281 in words is "one hundred fifty-one billion, one hundred twenty-five million, two hundred twelve thousand, two hundred eighty-one".