1400975269 has 2 divisors, whose sum is σ = 1400975270. Its totient is φ = 1400975268.

The previous prime is 1400975209. The next prime is 1400975309. The reversal of 1400975269 is 9625790041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944640225 + 456335044 = 30735^2 + 21362^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400975269 - 2²⁹ = 864104357 is a prime.

It is a super-2 number, since 2×1400975269² = 3925463408699244722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400975209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700487634 + 700487635.

It is an arithmetic number, because the mean of its divisors is an integer number (700487635).

Almost surely, 2^1400975269 is an apocalyptic number.

It is an amenable number.

1400975269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400975269 is an equidigital number, since it uses as much as digits as its factorization.

1400975269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1400975269 is about 37429.6041790452. The cubic root of 1400975269 is about 1118.9486490816.

The spelling of 1400975269 in words is "one billion, four hundred million, nine hundred seventy-five thousand, two hundred sixty-nine".