1302155401 has 2 divisors, whose sum is σ = 1302155402. Its totient is φ = 1302155400.

The previous prime is 1302155389. The next prime is 1302155453. The reversal of 1302155401 is 1045512031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 968143225 + 334012176 = 31115^2 + 18276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1302155401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1302155461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651077700 + 651077701.

It is an arithmetic number, because the mean of its divisors is an integer number (651077701).

Almost surely, 2^1302155401 is an apocalyptic number.

It is an amenable number.

1302155401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302155401 is an equidigital number, since it uses as much as digits as its factorization.

1302155401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1302155401 is about 36085.3904094164. The cubic root of 1302155401 is about 1091.9957267585.

Adding to 1302155401 its reverse (1045512031), we get a palindrome (2347667432).

The spelling of 1302155401 in words is "one billion, three hundred two million, one hundred fifty-five thousand, four hundred one".