1301399051 has 2 divisors, whose sum is σ = 1301399052. Its totient is φ = 1301399050.

The previous prime is 1301399023. The next prime is 1301399059. The reversal of 1301399051 is 1509931031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301399051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301398999 and 1301399017.

It is not a weakly prime, because it can be changed into another prime (1301399059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650699525 + 650699526.

It is an arithmetic number, because the mean of its divisors is an integer number (650699526).

Almost surely, 2^1301399051 is an apocalyptic number.

1301399051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301399051 is an equidigital number, since it uses as much as digits as its factorization.

1301399051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 1301399051 is about 36074.9088841538. The cubic root of 1301399051 is about 1091.7842591842.

The spelling of 1301399051 in words is "one billion, three hundred one million, three hundred ninety-nine thousand, fifty-one".