312345461 has 2 divisors, whose sum is σ = 312345462. Its totient is φ = 312345460.

The previous prime is 312345443. The next prime is 312345487. The reversal of 312345461 is 164543213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275062225 + 37283236 = 16585^2 + 6106^2 .

It is a cyclic number.

It is not a de Polignac number, because 312345461 - 2¹⁴ = 312329077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312345361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156172730 + 156172731.

It is an arithmetic number, because the mean of its divisors is an integer number (156172731).

Almost surely, 2^312345461 is an apocalyptic number.

It is an amenable number.

312345461 is a deficient number, since it is larger than the sum of its proper divisors (1).

312345461 is an equidigital number, since it uses as much as digits as its factorization.

312345461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 312345461 is about 17673.2979661409. The cubic root of 312345461 is about 678.4925234684.

Adding to 312345461 its reverse (164543213), we get a palindrome (476888674).

It can be divided in two parts, 3123 and 45461, that added together give a palindrome (48584).

The spelling of 312345461 in words is "three hundred twelve million, three hundred forty-five thousand, four hundred sixty-one".