1401553357 has 2 divisors, whose sum is σ = 1401553358. Its totient is φ = 1401553356.

The previous prime is 1401553343. The next prime is 1401553421. The reversal of 1401553357 is 7533551041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1401304356 + 249001 = 37434^2 + 499^2 .

It is an emirp because it is prime and its reverse (7533551041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401553357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401553337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700776678 + 700776679.

It is an arithmetic number, because the mean of its divisors is an integer number (700776679).

Almost surely, 2^1401553357 is an apocalyptic number.

It is an amenable number.

1401553357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401553357 is an equidigital number, since it uses as much as digits as its factorization.

1401553357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 1401553357 is about 37437.3257191269. The cubic root of 1401553357 is about 1119.1025327965.

The spelling of 1401553357 in words is "one billion, four hundred one million, five hundred fifty-three thousand, three hundred fifty-seven".