151521233 has 2 divisors, whose sum is σ = 151521234. Its totient is φ = 151521232.

The previous prime is 151521203. The next prime is 151521277. The reversal of 151521233 is 332125151.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129777664 + 21743569 = 11392^2 + 4663^2 .

It is a cyclic number.

It is not a de Polignac number, because 151521233 - 2⁶ = 151521169 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 151521199 and 151521208.

It is not a weakly prime, because it can be changed into another prime (151521203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75760616 + 75760617.

It is an arithmetic number, because the mean of its divisors is an integer number (75760617).

Almost surely, 2^151521233 is an apocalyptic number.

It is an amenable number.

151521233 is a deficient number, since it is larger than the sum of its proper divisors (1).

151521233 is an equidigital number, since it uses as much as digits as its factorization.

151521233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 151521233 is about 12309.3961265368. The cubic root of 151521233 is about 533.1194146867.

Adding to 151521233 its reverse (332125151), we get a palindrome (483646384).

The spelling of 151521233 in words is "one hundred fifty-one million, five hundred twenty-one thousand, two hundred thirty-three".