1412597621 has 4 divisors (see below), whose sum is σ = 1412743500. Its totient is φ = 1412451744.

The previous prime is 1412597597. The next prime is 1412597623. The reversal of 1412597621 is 1267952141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1267952141 = 3719 ⋅340939.

It can be written as a sum of positive squares in 2 ways, for example, as 1407075121 + 5522500 = 37511^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1412597621 - 2¹⁴ = 1412581237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1412597623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57296 + ... + 78153.

It is an arithmetic number, because the mean of its divisors is an integer number (353185875).

Almost surely, 2^1412597621 is an apocalyptic number.

It is an amenable number.

1412597621 is a deficient number, since it is larger than the sum of its proper divisors (145879).

1412597621 is a wasteful number, since it uses less digits than its factorization.

1412597621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145878.

The product of its digits is 30240, while the sum is 38.

The square root of 1412597621 is about 37584.5396539588. The cubic root of 1412597621 is about 1122.0343608640.

The spelling of 1412597621 in words is "one billion, four hundred twelve million, five hundred ninety-seven thousand, six hundred twenty-one".