1401544051 has 2 divisors, whose sum is σ = 1401544052. Its totient is φ = 1401544050.

The previous prime is 1401544043. The next prime is 1401544087. The reversal of 1401544051 is 1504451041.

It is a weak prime.

It is an emirp because it is prime and its reverse (1504451041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401544051 - 2³ = 1401544043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401524051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700772025 + 700772026.

It is an arithmetic number, because the mean of its divisors is an integer number (700772026).

Almost surely, 2^1401544051 is an apocalyptic number.

1401544051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401544051 is an equidigital number, since it uses as much as digits as its factorization.

1401544051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1401544051 is about 37437.2014311968. The cubic root of 1401544051 is about 1119.1000559277.

Adding to 1401544051 its reverse (1504451041), we get a palindrome (2905995092).

The spelling of 1401544051 in words is "one billion, four hundred one million, five hundred forty-four thousand, fifty-one".