312525145 has 4 divisors (see below), whose sum is σ = 375030180. Its totient is φ = 250020112.

The previous prime is 312525139. The next prime is 312525151. The reversal of 312525145 is 541525213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541525213 = 19 ⋅28501327.

It is an interprime number because it is at equal distance from previous prime (312525139) and next prime (312525151).

It can be written as a sum of positive squares in 2 ways, for example, as 156475081 + 156050064 = 12509^2 + 12492^2 .

It is a cyclic number.

It is not a de Polignac number, because 312525145 - 2²¹ = 310427993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31252510 + ... + 31252519.

It is an arithmetic number, because the mean of its divisors is an integer number (93757545).

Almost surely, 2^312525145 is an apocalyptic number.

It is an amenable number.

312525145 is a deficient number, since it is larger than the sum of its proper divisors (62505035).

312525145 is an equidigital number, since it uses as much as digits as its factorization.

312525145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62505034.

The product of its digits is 6000, while the sum is 28.

The square root of 312525145 is about 17678.3807233581. The cubic root of 312525145 is about 678.6226047355.

The spelling of 312525145 in words is "three hundred twelve million, five hundred twenty-five thousand, one hundred forty-five".