1252020151 has 2 divisors, whose sum is σ = 1252020152. Its totient is φ = 1252020150.

The previous prime is 1252020137. The next prime is 1252020167. The reversal of 1252020151 is 1510202521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252020151 - 2²⁷ = 1117802423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252020251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626010075 + 626010076.

It is an arithmetic number, because the mean of its divisors is an integer number (626010076).

Almost surely, 2^1252020151 is an apocalyptic number.

1252020151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252020151 is an equidigital number, since it uses as much as digits as its factorization.

1252020151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1252020151 is about 35383.8967752281. The cubic root of 1252020151 is about 1077.7973371348.

Adding to 1252020151 its reverse (1510202521), we get a palindrome (2762222672).

The spelling of 1252020151 in words is "one billion, two hundred fifty-two million, twenty thousand, one hundred fifty-one".