31344154 has 4 divisors (see below), whose sum is σ = 47016234. Its totient is φ = 15672076.

The previous prime is 31344151. The next prime is 31344169. The reversal of 31344154 is 45144313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20930625 + 10413529 = 4575^2 + 3227^2 .

It is not an unprimeable number, because it can be changed into a prime (31344151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7836037 + ... + 7836040.

Almost surely, 2^31344154 is an apocalyptic number.

31344154 is a deficient number, since it is larger than the sum of its proper divisors (15672080).

31344154 is a wasteful number, since it uses less digits than its factorization.

31344154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15672079.

The product of its digits is 2880, while the sum is 25.

The square root of 31344154 is about 5598.5849998013. The cubic root of 31344154 is about 315.2962829210.

Adding to 31344154 its reverse (45144313), we get a palindrome (76488467).

The spelling of 31344154 in words is "thirty-one million, three hundred forty-four thousand, one hundred fifty-four".