245151133 has 4 divisors (see below), whose sum is σ = 245229660. Its totient is φ = 245072608.

The previous prime is 245151121. The next prime is 245151161. The reversal of 245151133 is 331151542.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162741049 + 82410084 = 12757^2 + 9078^2 .

It is a cyclic number.

It is not a de Polignac number, because 245151133 - 2²⁵ = 211596701 is a prime.

It is a super-2 number, since 2×245151133² = 120198156022367378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245151098 and 245151107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245151163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34378 + ... + 40891.

It is an arithmetic number, because the mean of its divisors is an integer number (61307415).

Almost surely, 2^245151133 is an apocalyptic number.

It is an amenable number.

245151133 is a deficient number, since it is larger than the sum of its proper divisors (78527).

245151133 is an equidigital number, since it uses as much as digits as its factorization.

245151133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78526.

The product of its digits is 1800, while the sum is 25.

The square root of 245151133 is about 15657.3028647976. The cubic root of 245151133 is about 625.8611131896.

The spelling of 245151133 in words is "two hundred forty-five million, one hundred fifty-one thousand, one hundred thirty-three".