152421653 has 2 divisors, whose sum is σ = 152421654. Its totient is φ = 152421652.

The previous prime is 152421649. The next prime is 152421671. The reversal of 152421653 is 356124251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123498769 + 28922884 = 11113^2 + 5378^2 .

It is a cyclic number.

It is not a de Polignac number, because 152421653 - 2² = 152421649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152421613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76210826 + 76210827.

It is an arithmetic number, because the mean of its divisors is an integer number (76210827).

Almost surely, 2^152421653 is an apocalyptic number.

It is an amenable number.

152421653 is a deficient number, since it is larger than the sum of its proper divisors (1).

152421653 is an equidigital number, since it uses as much as digits as its factorization.

152421653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 152421653 is about 12345.9164503896. The cubic root of 152421653 is about 534.1733563976.

The spelling of 152421653 in words is "one hundred fifty-two million, four hundred twenty-one thousand, six hundred fifty-three".