1400605541 has 2 divisors, whose sum is σ = 1400605542. Its totient is φ = 1400605540.

The previous prime is 1400605519. The next prime is 1400605603. The reversal of 1400605541 is 1455060041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1274133025 + 126472516 = 35695^2 + 11246^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400605541 - 2⁶ = 1400605477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400605541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400505541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700302770 + 700302771.

It is an arithmetic number, because the mean of its divisors is an integer number (700302771).

Almost surely, 2^1400605541 is an apocalyptic number.

It is an amenable number.

1400605541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400605541 is an equidigital number, since it uses as much as digits as its factorization.

1400605541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1400605541 is about 37424.6648749191. The cubic root of 1400605541 is about 1118.8502074093.

Adding to 1400605541 its reverse (1455060041), we get a palindrome (2855665582).

The spelling of 1400605541 in words is "one billion, four hundred million, six hundred five thousand, five hundred forty-one".