390901541 has 2 divisors, whose sum is σ = 390901542. Its totient is φ = 390901540.

The previous prime is 390901529. The next prime is 390901543. The reversal of 390901541 is 145109093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317730625 + 73170916 = 17825^2 + 8554^2 .

It is a cyclic number.

It is not a de Polignac number, because 390901541 - 2⁶ = 390901477 is a prime.

Together with 390901543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 390901498 and 390901507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390901543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195450770 + 195450771.

It is an arithmetic number, because the mean of its divisors is an integer number (195450771).

Almost surely, 2^390901541 is an apocalyptic number.

It is an amenable number.

390901541 is a deficient number, since it is larger than the sum of its proper divisors (1).

390901541 is an equidigital number, since it uses as much as digits as its factorization.

390901541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 390901541 is about 19771.2301337069. The cubic root of 390901541 is about 731.1768974966.

The spelling of 390901541 in words is "three hundred ninety million, nine hundred one thousand, five hundred forty-one".