1613200451 has 2 divisors, whose sum is σ = 1613200452. Its totient is φ = 1613200450.

The previous prime is 1613200439. The next prime is 1613200471. The reversal of 1613200451 is 1540023161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1613200451 - 2⁶ = 1613200387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1613200471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806600225 + 806600226.

It is an arithmetic number, because the mean of its divisors is an integer number (806600226).

Almost surely, 2^1613200451 is an apocalyptic number.

1613200451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613200451 is an equidigital number, since it uses as much as digits as its factorization.

1613200451 is an evil number, because the sum of its binary digits is even.

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

The square root of 1613200451 is about 40164.6666984801. Note that the first 4 decimals coincide. The cubic root of 1613200451 is about 1172.8148192562.

The spelling of 1613200451 in words is "one billion, six hundred thirteen million, two hundred thousand, four hundred fifty-one".