152011621 has 2 divisors, whose sum is σ = 152011622. Its totient is φ = 152011620.

The previous prime is 152011597. The next prime is 152011661. The reversal of 152011621 is 126110251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149084100 + 2927521 = 12210^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 152011621 - 2⁹ = 152011109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152011661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76005810 + 76005811.

It is an arithmetic number, because the mean of its divisors is an integer number (76005811).

Almost surely, 2^152011621 is an apocalyptic number.

It is an amenable number.

152011621 is a deficient number, since it is larger than the sum of its proper divisors (1).

152011621 is an equidigital number, since it uses as much as digits as its factorization.

152011621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 152011621 is about 12329.2992907140. The cubic root of 152011621 is about 533.6939300537.

Adding to 152011621 its reverse (126110251), we get a palindrome (278121872).

The spelling of 152011621 in words is "one hundred fifty-two million, eleven thousand, six hundred twenty-one".