151124521 has 2 divisors, whose sum is σ = 151124522. Its totient is φ = 151124520.

The previous prime is 151124507. The next prime is 151124549. The reversal of 151124521 is 125421151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142922025 + 8202496 = 11955^2 + 2864^2 .

It is an emirp because it is prime and its reverse (125421151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151124521 - 2⁹ = 151124009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151124492 and 151124501.

It is not a weakly prime, because it can be changed into another prime (151124821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75562260 + 75562261.

It is an arithmetic number, because the mean of its divisors is an integer number (75562261).

Almost surely, 2^151124521 is an apocalyptic number.

It is an amenable number.

151124521 is a deficient number, since it is larger than the sum of its proper divisors (1).

151124521 is an equidigital number, since it uses as much as digits as its factorization.

151124521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 22.

The square root of 151124521 is about 12293.2713709574. The cubic root of 151124521 is about 532.6537380018.

Adding to 151124521 its reverse (125421151), we get a palindrome (276545672).

The spelling of 151124521 in words is "one hundred fifty-one million, one hundred twenty-four thousand, five hundred twenty-one".