1401523379 has 2 divisors, whose sum is σ = 1401523380. Its totient is φ = 1401523378.

The previous prime is 1401523349. The next prime is 1401523399. The reversal of 1401523379 is 9733251041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401523379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401523349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700761689 + 700761690.

It is an arithmetic number, because the mean of its divisors is an integer number (700761690).

Almost surely, 2^1401523379 is an apocalyptic number.

1401523379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401523379 is an equidigital number, since it uses as much as digits as its factorization.

1401523379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1401523379 is about 37436.9253411655. The cubic root of 1401523379 is about 1119.0945538649.

The spelling of 1401523379 in words is "one billion, four hundred one million, five hundred twenty-three thousand, three hundred seventy-nine".