312040051 has 4 divisors (see below), whose sum is σ = 312145704. Its totient is φ = 311934400.

The previous prime is 312040037. The next prime is 312040061. The reversal of 312040051 is 150040213.

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

It is a cyclic number.

It is not a de Polignac number, because 312040051 - 2¹³ = 312031859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312040061) 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, 48265 + ... + 54346.

It is an arithmetic number, because the mean of its divisors is an integer number (78036426).

Almost surely, 2^312040051 is an apocalyptic number.

312040051 is a deficient number, since it is larger than the sum of its proper divisors (105653).

312040051 is a wasteful number, since it uses less digits than its factorization.

312040051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105652.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 312040051 is about 17664.6554169619. The cubic root of 312040051 is about 678.2713090298.

Adding to 312040051 its reverse (150040213), we get a palindrome (462080264).

The spelling of 312040051 in words is "three hundred twelve million, forty thousand, fifty-one".