1461920051 has 2 divisors, whose sum is σ = 1461920052. Its totient is φ = 1461920050.

The previous prime is 1461920039. The next prime is 1461920081. The reversal of 1461920051 is 1500291641.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1461920051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1461919996 and 1461920023.

It is not a weakly prime, because it can be changed into another prime (1461920081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730960025 + 730960026.

It is an arithmetic number, because the mean of its divisors is an integer number (730960026).

Almost surely, 2^1461920051 is an apocalyptic number.

1461920051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461920051 is an equidigital number, since it uses as much as digits as its factorization.

1461920051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1461920051 is about 38235.0631096641. The cubic root of 1461920051 is about 1134.9442813248.

The spelling of 1461920051 in words is "one billion, four hundred sixty-one million, nine hundred twenty thousand, fifty-one".