1405350157 has 2 divisors, whose sum is σ = 1405350158. Its totient is φ = 1405350156.

The previous prime is 1405350127. The next prime is 1405350211. The reversal of 1405350157 is 7510535041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235803716 + 169546441 = 35154^2 + 13021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405350157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405350127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702675078 + 702675079.

It is an arithmetic number, because the mean of its divisors is an integer number (702675079).

Almost surely, 2^1405350157 is an apocalyptic number.

It is an amenable number.

1405350157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405350157 is an equidigital number, since it uses as much as digits as its factorization.

1405350157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 1405350157 is about 37488.0001733888. Note that the first 3 decimals coincide. The cubic root of 1405350157 is about 1120.1121690910.

Adding to 1405350157 its reverse (7510535041), we get a palindrome (8915885198).

The spelling of 1405350157 in words is "one billion, four hundred five million, three hundred fifty thousand, one hundred fifty-seven".