262172401 has 2 divisors, whose sum is σ = 262172402. Its totient is φ = 262172400.

The previous prime is 262172371. The next prime is 262172429. The reversal of 262172401 is 104271262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137827600 + 124344801 = 11740^2 + 11151^2 .

It is a cyclic number.

It is not a de Polignac number, because 262172401 - 2¹⁹ = 261648113 is a prime.

It is a super-2 number, since 2×262172401² = 137468735692209602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (262172201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131086200 + 131086201.

It is an arithmetic number, because the mean of its divisors is an integer number (131086201).

Almost surely, 2^262172401 is an apocalyptic number.

It is an amenable number.

262172401 is a deficient number, since it is larger than the sum of its proper divisors (1).

262172401 is an equidigital number, since it uses as much as digits as its factorization.

262172401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 262172401 is about 16191.7386651341. The cubic root of 262172401 is about 640.0231119583.

The spelling of 262172401 in words is "two hundred sixty-two million, one hundred seventy-two thousand, four hundred one".