1401648029 has 2 divisors, whose sum is σ = 1401648030. Its totient is φ = 1401648028.

The previous prime is 1401647957. The next prime is 1401648049. The reversal of 1401648029 is 9208461041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1365672025 + 35976004 = 36955^2 + 5998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401648029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401648029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401648049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700824014 + 700824015.

It is an arithmetic number, because the mean of its divisors is an integer number (700824015).

Almost surely, 2^1401648029 is an apocalyptic number.

It is an amenable number.

1401648029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401648029 is an equidigital number, since it uses as much as digits as its factorization.

1401648029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1401648029 is about 37438.5901043295. The cubic root of 1401648029 is about 1119.1277299082.

The spelling of 1401648029 in words is "one billion, four hundred one million, six hundred forty-eight thousand, twenty-nine".