152150021 has 2 divisors, whose sum is σ = 152150022. Its totient is φ = 152150020.

The previous prime is 152149997. The next prime is 152150023. The reversal of 152150021 is 120051251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147136900 + 5013121 = 12130^2 + 2239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152150021 is a prime.

Together with 152150023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152150023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76075010 + 76075011.

It is an arithmetic number, because the mean of its divisors is an integer number (76075011).

Almost surely, 2^152150021 is an apocalyptic number.

It is an amenable number.

152150021 is a deficient number, since it is larger than the sum of its proper divisors (1).

152150021 is an equidigital number, since it uses as much as digits as its factorization.

152150021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 152150021 is about 12334.9106603980. The cubic root of 152150021 is about 533.8558493297.

The spelling of 152150021 in words is "one hundred fifty-two million, one hundred fifty thousand, twenty-one".