31340354 has 4 divisors (see below), whose sum is σ = 47010534. Its totient is φ = 15670176.

The previous prime is 31340317. The next prime is 31340381. The reversal of 31340354 is 45304313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45304313 = 1511 ⋅29983.

It can be written as a sum of positive squares in only one way, i.e., 19936225 + 11404129 = 4465^2 + 3377^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7835087 + ... + 7835090.

Almost surely, 2^31340354 is an apocalyptic number.

31340354 is a deficient number, since it is larger than the sum of its proper divisors (15670180).

31340354 is a wasteful number, since it uses less digits than its factorization.

31340354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15670179.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 31340354 is about 5598.2456180486. The cubic root of 31340354 is about 315.2835407863.

Adding to 31340354 its reverse (45304313), we get a palindrome (76644667).

The spelling of 31340354 in words is "thirty-one million, three hundred forty thousand, three hundred fifty-four".