151533643 has 2 divisors, whose sum is σ = 151533644. Its totient is φ = 151533642.

The previous prime is 151533583. The next prime is 151533649. The reversal of 151533643 is 346335151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 151533643 - 2¹⁷ = 151402571 is a prime.

It is not a weakly prime, because it can be changed into another prime (151533649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75766821 + 75766822.

It is an arithmetic number, because the mean of its divisors is an integer number (75766822).

Almost surely, 2^151533643 is an apocalyptic number.

151533643 is a deficient number, since it is larger than the sum of its proper divisors (1).

151533643 is an equidigital number, since it uses as much as digits as its factorization.

151533643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

The square root of 151533643 is about 12309.9002026824. The cubic root of 151533643 is about 533.1339689314.

Adding to 151533643 its reverse (346335151), we get a palindrome (497868794).

The spelling of 151533643 in words is "one hundred fifty-one million, five hundred thirty-three thousand, six hundred forty-three".