20197054 has 24 divisors (see below), whose sum is σ = 32647608. Its totient is φ = 9367680.

The previous prime is 20197007. The next prime is 20197069. The reversal of 20197054 is 45079102.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47764 + ... + 48184.

It is an arithmetic number, because the mean of its divisors is an integer number (1360317).

Almost surely, 2^20197054 is an apocalyptic number.

20197054 is a deficient number, since it is larger than the sum of its proper divisors (12450554).

20197054 is a wasteful number, since it uses less digits than its factorization.

20197054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20197054 is about 4494.1132607000. The cubic root of 20197054 is about 272.3303278407.

The spelling of 20197054 in words is "twenty million, one hundred ninety-seven thousand, fifty-four".