20134546 has 4 divisors (see below), whose sum is σ = 30201822. Its totient is φ = 10067272.

The previous prime is 20134529. The next prime is 20134553. The reversal of 20134546 is 64543102.

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., 20115225 + 19321 = 4485^2 + 139^2 .

It is a super-2 number, since 2×20134546² = 810799885252232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20134546.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033635 + ... + 5033638.

Almost surely, 2^20134546 is an apocalyptic number.

20134546 is a deficient number, since it is larger than the sum of its proper divisors (10067276).

20134546 is a wasteful number, since it uses less digits than its factorization.

20134546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067275.

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

The square root of 20134546 is about 4487.1534406570. The cubic root of 20134546 is about 272.0490918456.

Adding to 20134546 its reverse (64543102), we get a palindrome (84677648).

The spelling of 20134546 in words is "twenty million, one hundred thirty-four thousand, five hundred forty-six".