1401550427 has 2 divisors, whose sum is σ = 1401550428. Its totient is φ = 1401550426.

The previous prime is 1401550351. The next prime is 1401550439. The reversal of 1401550427 is 7240551041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401550427 - 2¹⁶ = 1401484891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401550427.

It is not a weakly prime, because it can be changed into another prime (1401550727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700775213 + 700775214.

It is an arithmetic number, because the mean of its divisors is an integer number (700775214).

Almost surely, 2^1401550427 is an apocalyptic number.

1401550427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401550427 is an equidigital number, since it uses as much as digits as its factorization.

1401550427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1401550427 is about 37437.2865870378. The cubic root of 1401550427 is about 1119.1017529539.

The spelling of 1401550427 in words is "one billion, four hundred one million, five hundred fifty thousand, four hundred twenty-seven".