20146354 has 4 divisors (see below), whose sum is σ = 30219534. Its totient is φ = 10073176.

The previous prime is 20146349. The next prime is 20146363. The reversal of 20146354 is 45364102.

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., 14265729 + 5880625 = 3777^2 + 2425^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5036587 + ... + 5036590.

Almost surely, 2^20146354 is an apocalyptic number.

20146354 is a deficient number, since it is larger than the sum of its proper divisors (10073180).

20146354 is a wasteful number, since it uses less digits than its factorization.

20146354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073179.

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

The square root of 20146354 is about 4488.4690040146. The cubic root of 20146354 is about 272.1022629462.

The spelling of 20146354 in words is "twenty million, one hundred forty-six thousand, three hundred fifty-four".