312542154 has 12 divisors (see below), whose sum is σ = 677174706. Its totient is φ = 104180712.

The previous prime is 312542149. The next prime is 312542159. The reversal of 312542154 is 451245213.

It is an interprime number because it is at equal distance from previous prime (312542149) and next prime (312542159).

It can be written as a sum of positive squares in only one way, i.e., 171479025 + 141063129 = 13095^2 + 11877^2 .

It is not an unprimeable number, because it can be changed into a prime (312542159) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8681709 + ... + 8681744.

Almost surely, 2^312542154 is an apocalyptic number.

312542154 is an abundant number, since it is smaller than the sum of its proper divisors (364632552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312542154 is a wasteful number, since it uses less digits than its factorization.

312542154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17363461 (or 17363458 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 312542154 is about 17678.8617846286. The cubic root of 312542154 is about 678.6349157262.

Adding to 312542154 its reverse (451245213), we get a palindrome (763787367).

The spelling of 312542154 in words is "three hundred twelve million, five hundred forty-two thousand, one hundred fifty-four".