151008521 has 2 divisors, whose sum is σ = 151008522. Its totient is φ = 151008520.

The previous prime is 151008503. The next prime is 151008587. The reversal of 151008521 is 125800151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113124496 + 37884025 = 10636^2 + 6155^2 .

It is a cyclic number.

It is not a de Polignac number, because 151008521 - 2¹⁴ = 150992137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (151008721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75504260 + 75504261.

It is an arithmetic number, because the mean of its divisors is an integer number (75504261).

Almost surely, 2^151008521 is an apocalyptic number.

It is an amenable number.

151008521 is a deficient number, since it is larger than the sum of its proper divisors (1).

151008521 is an equidigital number, since it uses as much as digits as its factorization.

151008521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 151008521 is about 12288.5524371262. The cubic root of 151008521 is about 532.5174185196.

Adding to 151008521 its reverse (125800151), we get a palindrome (276808672).

The spelling of 151008521 in words is "one hundred fifty-one million, eight thousand, five hundred twenty-one".