1293660401 has 4 divisors (see below), whose sum is σ = 1411265904. Its totient is φ = 1176054900.

The previous prime is 1293660397. The next prime is 1293660409. The reversal of 1293660401 is 1040663921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1293660401 - 2² = 1293660397 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1293660409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58802735 + ... + 58802756.

It is an arithmetic number, because the mean of its divisors is an integer number (352816476).

Almost surely, 2^1293660401 is an apocalyptic number.

1293660401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1293660401 is a deficient number, since it is larger than the sum of its proper divisors (117605503).

1293660401 is a wasteful number, since it uses less digits than its factorization.

1293660401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117605502.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1293660401 is about 35967.4908910811. The cubic root of 1293660401 is about 1089.6158905257.

It can be divided in two parts, 12936 and 60401, that added together give a palindrome (73337).

The spelling of 1293660401 in words is "one billion, two hundred ninety-three million, six hundred sixty thousand, four hundred one".