1401620543 has 2 divisors, whose sum is σ = 1401620544. Its totient is φ = 1401620542.

The previous prime is 1401620533. The next prime is 1401620593. The reversal of 1401620543 is 3450261041.

It is a weak prime.

It is an emirp because it is prime and its reverse (3450261041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401620543 - 2⁴ = 1401620527 is a prime.

It is a super-2 number, since 2×1401620543² = 3929080293119229698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401620533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700810271 + 700810272.

It is an arithmetic number, because the mean of its divisors is an integer number (700810272).

Almost surely, 2^1401620543 is an apocalyptic number.

1401620543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401620543 is an equidigital number, since it uses as much as digits as its factorization.

1401620543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1401620543 is about 37438.2230213989. The cubic root of 1401620543 is about 1119.1204145800.

Adding to 1401620543 its reverse (3450261041), we get a palindrome (4851881584).

The spelling of 1401620543 in words is "one billion, four hundred one million, six hundred twenty thousand, five hundred forty-three".