311404045 has 8 divisors (see below), whose sum is σ = 395666424. Its totient is φ = 234468864.

The previous prime is 311404043. The next prime is 311404103. The reversal of 311404045 is 540404113.

It can be written as a sum of positive squares in 4 ways, for example, as 92275236 + 219128809 = 9606^2 + 14803^2 .

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 311404045 - 2¹ = 311404043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311404043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831704 + ... + 1831873.

It is an arithmetic number, because the mean of its divisors is an integer number (49458303).

Almost surely, 2^311404045 is an apocalyptic number.

It is an amenable number.

311404045 is a deficient number, since it is larger than the sum of its proper divisors (84262379).

311404045 is a wasteful number, since it uses less digits than its factorization.

311404045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663599.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 311404045 is about 17646.6440152228. The cubic root of 311404045 is about 677.8101737379.

Adding to 311404045 its reverse (540404113), we get a palindrome (851808158).

The spelling of 311404045 in words is "three hundred eleven million, four hundred four thousand, forty-five".