206152401 has 16 divisors (see below), whose sum is σ = 338301824. Its totient is φ = 108739584.

The previous prime is 206152361. The next prime is 206152411. The reversal of 206152401 is 104251602.

It is not a de Polignac number, because 206152401 - 2¹⁰ = 206151377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (206152411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377296 + ... + 377841.

It is an arithmetic number, because the mean of its divisors is an integer number (21143864).

Almost surely, 2^206152401 is an apocalyptic number.

206152401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

206152401 is a deficient number, since it is larger than the sum of its proper divisors (132149423).

206152401 is a wasteful number, since it uses less digits than its factorization.

206152401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755160.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 206152401 is about 14358.0082532362. The cubic root of 206152401 is about 590.7396650585.

The spelling of 206152401 in words is "two hundred six million, one hundred fifty-two thousand, four hundred one".