1479749451 has 4 divisors (see below), whose sum is σ = 1972999272. Its totient is φ = 986499632.

The previous prime is 1479749449. The next prime is 1479749461. The reversal of 1479749451 is 1549479741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1479749451 - 2¹ = 1479749449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1479749394 and 1479749403.

It is not an unprimeable number, because it can be changed into a prime (1479749461) 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, 246624906 + ... + 246624911.

It is an arithmetic number, because the mean of its divisors is an integer number (493249818).

Almost surely, 2^1479749451 is an apocalyptic number.

1479749451 is a deficient number, since it is larger than the sum of its proper divisors (493249821).

1479749451 is an equidigital number, since it uses as much as digits as its factorization.

1479749451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493249820.

The product of its digits is 1270080, while the sum is 51.

The square root of 1479749451 is about 38467.5116299456. The cubic root of 1479749451 is about 1139.5395316383.

The spelling of 1479749451 in words is "one billion, four hundred seventy-nine million, seven hundred forty-nine thousand, four hundred fifty-one".