1303400977 has 2 divisors, whose sum is σ = 1303400978. Its totient is φ = 1303400976.

The previous prime is 1303400971. The next prime is 1303401059. The reversal of 1303400977 is 7790043031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1189146256 + 114254721 = 34484^2 + 10689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303400977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303400971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651700488 + 651700489.

It is an arithmetic number, because the mean of its divisors is an integer number (651700489).

Almost surely, 2^1303400977 is an apocalyptic number.

It is an amenable number.

1303400977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303400977 is an equidigital number, since it uses as much as digits as its factorization.

1303400977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 1303400977 is about 36102.6450139045. The cubic root of 1303400977 is about 1092.3437984277.

The spelling of 1303400977 in words is "one billion, three hundred three million, four hundred thousand, nine hundred seventy-seven".