1401331451 has 8 divisors (see below), whose sum is σ = 1549913904. Its totient is φ = 1258575840.

The previous prime is 1401331427. The next prime is 1401331457. The reversal of 1401331451 is 1541331041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1401331451 - 2⁶ = 1401331387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401331457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456205 + ... + 1457166.

It is an arithmetic number, because the mean of its divisors is an integer number (193739238).

Almost surely, 2^1401331451 is an apocalyptic number.

1401331451 is a deficient number, since it is larger than the sum of its proper divisors (148582453).

1401331451 is a wasteful number, since it uses less digits than its factorization.

1401331451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913421.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1401331451 is about 37434.3619018676. The cubic root of 1401331451 is about 1119.0434676949.

Adding to 1401331451 its reverse (1541331041), we get a palindrome (2942662492).

The spelling of 1401331451 in words is "one billion, four hundred one million, three hundred thirty-one thousand, four hundred fifty-one".