1600420249 has 2 divisors, whose sum is σ = 1600420250. Its totient is φ = 1600420248.

The previous prime is 1600420231. The next prime is 1600420267. The reversal of 1600420249 is 9420240061.

It is a balanced prime because it is at equal distance from previous prime (1600420231) and next prime (1600420267).

It can be written as a sum of positive squares in only one way, i.e., 1002862224 + 597558025 = 31668^2 + 24445^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600420249 - 2¹³ = 1600412057 is a prime.

It is a super-2 number, since 2×1600420249² = 5122689946818444002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1600420279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800210124 + 800210125.

It is an arithmetic number, because the mean of its divisors is an integer number (800210125).

Almost surely, 2^1600420249 is an apocalyptic number.

It is an amenable number.

1600420249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600420249 is an equidigital number, since it uses as much as digits as its factorization.

1600420249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1600420249 is about 40005.2527676054. The cubic root of 1600420249 is about 1169.7094876152.

The spelling of 1600420249 in words is "one billion, six hundred million, four hundred twenty thousand, two hundred forty-nine".