20313465 has 8 divisors (see below), whose sum is σ = 32501568. Its totient is φ = 10833840.

The previous prime is 20313437. The next prime is 20313467. The reversal of 20313465 is 56431302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20313465 - 2¹² = 20309369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20313467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677101 + ... + 677130.

It is an arithmetic number, because the mean of its divisors is an integer number (4062696).

Almost surely, 2^20313465 is an apocalyptic number.

It is an amenable number.

20313465 is a deficient number, since it is larger than the sum of its proper divisors (12188103).

20313465 is a wasteful number, since it uses less digits than its factorization.

20313465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354239.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20313465 is about 4507.0461501964. The cubic root of 20313465 is about 272.8525414933.

Adding to 20313465 its reverse (56431302), we get a palindrome (76744767).

The spelling of 20313465 in words is "twenty million, three hundred thirteen thousand, four hundred sixty-five".