312930542 has 4 divisors (see below), whose sum is σ = 469395816. Its totient is φ = 156465270.

The previous prime is 312930517. The next prime is 312930581. The reversal of 312930542 is 245039213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245039213 = 59 ⋅4153207.

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, 78232634 + ... + 78232637.

It is an arithmetic number, because the mean of its divisors is an integer number (117348954).

Almost surely, 2^312930542 is an apocalyptic number.

312930542 is a deficient number, since it is larger than the sum of its proper divisors (156465274).

312930542 is a wasteful number, since it uses less digits than its factorization.

312930542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156465273.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 312930542 is about 17689.8429048988. The cubic root of 312930542 is about 678.9159066804.

Adding to 312930542 its reverse (245039213), we get a palindrome (557969755).

The spelling of 312930542 in words is "three hundred twelve million, nine hundred thirty thousand, five hundred forty-two".