1401115451 has 2 divisors, whose sum is σ = 1401115452. Its totient is φ = 1401115450.

The previous prime is 1401115439. The next prime is 1401115487. The reversal of 1401115451 is 1545111041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401115451 - 2²² = 1396921147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401115411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700557725 + 700557726.

It is an arithmetic number, because the mean of its divisors is an integer number (700557726).

Almost surely, 2^1401115451 is an apocalyptic number.

1401115451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401115451 is an equidigital number, since it uses as much as digits as its factorization.

1401115451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 1401115451 is about 37431.4767408394. The cubic root of 1401115451 is about 1118.9859686145.

Adding to 1401115451 its reverse (1545111041), we get a palindrome (2946226492).

The spelling of 1401115451 in words is "one billion, four hundred one million, one hundred fifteen thousand, four hundred fifty-one".