236897945 has 8 divisors (see below), whose sum is σ = 284432136. Its totient is φ = 189415296.

The previous prime is 236897933. The next prime is 236897951. The reversal of 236897945 is 549798632.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21307456 + 215590489 = 4616^2 + 14683^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 236897945 - 2¹² = 236893849 is a prime.

It is a super-2 number, since 2×236897945² = 112241272690446050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922 + ... + 21851.

It is an arithmetic number, because the mean of its divisors is an integer number (35554017).

Almost surely, 2^236897945 is an apocalyptic number.

It is an amenable number.

236897945 is a deficient number, since it is larger than the sum of its proper divisors (47534191).

236897945 is a wasteful number, since it uses less digits than its factorization.

236897945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25771.

The product of its digits is 3265920, while the sum is 53.

The square root of 236897945 is about 15391.4893691286. The cubic root of 236897945 is about 618.7574359546.

The spelling of 236897945 in words is "two hundred thirty-six million, eight hundred ninety-seven thousand, nine hundred forty-five".