1213401451 has 8 divisors (see below), whose sum is σ = 1239630480. Its totient is φ = 1187296032.

The previous prime is 1213401419. The next prime is 1213401463. The reversal of 1213401451 is 1541043121.

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 1213401451 - 2⁵ = 1213401419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213401481) 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 in 7 ways as a sum of consecutive naturals, for example, 10921 + ... + 50458.

It is an arithmetic number, because the mean of its divisors is an integer number (154953810).

Almost surely, 2^1213401451 is an apocalyptic number.

1213401451 is a deficient number, since it is larger than the sum of its proper divisors (26229029).

1213401451 is an equidigital number, since it uses as much as digits as its factorization.

1213401451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61805.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1213401451 is about 34833.9123699880. The cubic root of 1213401451 is about 1066.5998132688.

Adding to 1213401451 its reverse (1541043121), we get a palindrome (2754444572).

The spelling of 1213401451 in words is "one billion, two hundred thirteen million, four hundred one thousand, four hundred fifty-one".