401528135 has 8 divisors (see below), whose sum is σ = 502783200. Its totient is φ = 307256224.

The previous prime is 401528131. The next prime is 401528137. The reversal of 401528135 is 531825104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401528135 - 2² = 401528131 is a prime.

It is a super-2 number, since 2×401528135² = 322449686393156450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401528098 and 401528107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401528131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745660 + ... + 1745889.

It is an arithmetic number, because the mean of its divisors is an integer number (62847900).

Almost surely, 2^401528135 is an apocalyptic number.

401528135 is a deficient number, since it is larger than the sum of its proper divisors (101255065).

401528135 is a wasteful number, since it uses less digits than its factorization.

401528135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491577.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 401528135 is about 20038.1669570847. The cubic root of 401528135 is about 737.7433903175.

The spelling of 401528135 in words is "four hundred one million, five hundred twenty-eight thousand, one hundred thirty-five".