4155420401 has 4 divisors (see below), whose sum is σ = 4533185904. Its totient is φ = 3777654900.

The previous prime is 4155420359. The next prime is 4155420421. The reversal of 4155420401 is 1040245514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4155420401 - 2¹⁸ = 4155158257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4155420421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188882735 + ... + 188882756.

It is an arithmetic number, because the mean of its divisors is an integer number (1133296476).

Almost surely, 2^4155420401 is an apocalyptic number.

It is an amenable number.

4155420401 is a deficient number, since it is larger than the sum of its proper divisors (377765503).

4155420401 is a wasteful number, since it uses less digits than its factorization.

4155420401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377765502.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4155420401 is about 64462.5503761680. The cubic root of 4155420401 is about 1607.6999164915.

Adding to 4155420401 its reverse (1040245514), we get a palindrome (5195665915).

The spelling of 4155420401 in words is "four billion, one hundred fifty-five million, four hundred twenty thousand, four hundred one".