246521401 has 9 divisors (see below), whose sum is σ = 286897701. Its totient is φ = 211209852.

The previous prime is 246521389. The next prime is 246521419. The reversal of 246521401 is 104125642.

It is a happy number.

The square root of 246521401 is 15701.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 246521401 - 2²⁵ = 212966969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (246521461) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 108786 + ... + 111028.

Almost surely, 2^246521401 is an apocalyptic number.

246521401 is the 15701-st square number.

246521401 is the 7851-st centered octagonal number.

It is an amenable number.

246521401 is a deficient number, since it is larger than the sum of its proper divisors (40376300).

246521401 is an frugal number, since it uses more digits than its factorization.

246521401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The cubic root of 246521401 is about 627.0250272572.

Multiplying 246521401 by its sum of digits (25), we get a square (6163035025 = 78505²).

The spelling of 246521401 in words is "two hundred forty-six million, five hundred twenty-one thousand, four hundred one".