151638611 has 2 divisors, whose sum is σ = 151638612. Its totient is φ = 151638610.

The previous prime is 151638527. The next prime is 151638629. The reversal of 151638611 is 116836151.

It is a strong prime.

It is an emirp because it is prime and its reverse (116836151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151638611 - 2¹⁴ = 151622227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (151638631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75819305 + 75819306.

It is an arithmetic number, because the mean of its divisors is an integer number (75819306).

Almost surely, 2^151638611 is an apocalyptic number.

151638611 is a deficient number, since it is larger than the sum of its proper divisors (1).

151638611 is an equidigital number, since it uses as much as digits as its factorization.

151638611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 151638611 is about 12314.1630247451. The cubic root of 151638611 is about 533.2570419085.

The spelling of 151638611 in words is "one hundred fifty-one million, six hundred thirty-eight thousand, six hundred eleven".