252211154 has 8 divisors (see below), whose sum is σ = 407418060. Its totient is φ = 116405136.

The previous prime is 252211147. The next prime is 252211159. The reversal of 252211154 is 451112252.

It can be written as a sum of positive squares in 2 ways, for example, as 200873929 + 51337225 = 14173^2 + 7165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×252211154² = 127220932404023432, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252211159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850189 + ... + 4850240.

Almost surely, 2^252211154 is an apocalyptic number.

252211154 is a deficient number, since it is larger than the sum of its proper divisors (155206906).

252211154 is a wasteful number, since it uses less digits than its factorization.

252211154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700444.

The product of its digits is 800, while the sum is 23.

The square root of 252211154 is about 15881.1571996502. The cubic root of 252211154 is about 631.8123291113.

The spelling of 252211154 in words is "two hundred fifty-two million, two hundred eleven thousand, one hundred fifty-four".