312142004 has 6 divisors (see below), whose sum is σ = 546248514. Its totient is φ = 156071000.

The previous prime is 312141967. The next prime is 312142043. The reversal of 312142004 is 400241213.

It can be written as a sum of positive squares in only one way, i.e., 233784100 + 78357904 = 15290^2 + 8852^2 .

It is a super-2 number, since 2×312142004² = 194865261322272032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39017747 + ... + 39017754.

It is an arithmetic number, because the mean of its divisors is an integer number (91041419).

Almost surely, 2^312142004 is an apocalyptic number.

It is an amenable number.

312142004 is a deficient number, since it is larger than the sum of its proper divisors (234106510).

312142004 is a wasteful number, since it uses less digits than its factorization.

312142004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78035505 (or 78035503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 312142004 is about 17667.5409720764. The cubic root of 312142004 is about 678.3451716259.

Adding to 312142004 its reverse (400241213), we get a palindrome (712383217).

The spelling of 312142004 in words is "three hundred twelve million, one hundred forty-two thousand, four".