1400053261 has 2 divisors, whose sum is σ = 1400053262. Its totient is φ = 1400053260.

The previous prime is 1400053229. The next prime is 1400053267. The reversal of 1400053261 is 1623500041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1363824900 + 36228361 = 36930^2 + 6019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400053261 - 2⁵ = 1400053229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400053267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700026630 + 700026631.

It is an arithmetic number, because the mean of its divisors is an integer number (700026631).

Almost surely, 2^1400053261 is an apocalyptic number.

It is an amenable number.

1400053261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400053261 is an equidigital number, since it uses as much as digits as its factorization.

1400053261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1400053261 is about 37417.2855910206. The cubic root of 1400053261 is about 1118.7031282091.

The spelling of 1400053261 in words is "one billion, four hundred million, fifty-three thousand, two hundred sixty-one".