401230531 has 8 divisors (see below), whose sum is σ = 434747600. Its totient is φ = 368092512.

The previous prime is 401230523. The next prime is 401230547. The reversal of 401230531 is 135032104.

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 401230531 - 2³ = 401230523 is a prime.

It is a super-2 number, since 2×401230531² = 321971878013083922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401230499 and 401230508.

It is not an unprimeable number, because it can be changed into a prime (401230931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92556 + ... + 96793.

It is an arithmetic number, because the mean of its divisors is an integer number (54343450).

Almost surely, 2^401230531 is an apocalyptic number.

401230531 is a deficient number, since it is larger than the sum of its proper divisors (33517069).

401230531 is a wasteful number, since it uses less digits than its factorization.

401230531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189525.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 401230531 is about 20030.7396518451. The cubic root of 401230531 is about 737.5610787679.

Adding to 401230531 its reverse (135032104), we get a palindrome (536262635).

It can be divided in two parts, 4012 and 30531, that added together give a palindrome (34543).

The spelling of 401230531 in words is "four hundred one million, two hundred thirty thousand, five hundred thirty-one".