401145424397 has 2 divisors, whose sum is σ = 401145424398. Its totient is φ = 401145424396.

The previous prime is 401145424319. The next prime is 401145424409. The reversal of 401145424397 is 793424541104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400519373956 + 626050441 = 632866^2 + 25021^2 .

It is a cyclic number.

It is not a de Polignac number, because 401145424397 - 2³⁶ = 332425947661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401145424307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200572712198 + 200572712199.

It is an arithmetic number, because the mean of its divisors is an integer number (200572712199).

Almost surely, 2^401145424397 is an apocalyptic number.

It is an amenable number.

401145424397 is a deficient number, since it is larger than the sum of its proper divisors (1).

401145424397 is an equidigital number, since it uses as much as digits as its factorization.

401145424397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 401145424397 in words is "four hundred one billion, one hundred forty-five million, four hundred twenty-four thousand, three hundred ninety-seven".