2401531 has 8 divisors (see below), whose sum is σ = 2633904. Its totient is φ = 2171520.

The previous prime is 2401517. The next prime is 2401537. The reversal of 2401531 is 1351042.

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 2401531 - 2⁹ = 2401019 is a prime.

It is a super-2 number, since 2×2401531² = 11534702287922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2401537) 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, 2095 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (329238).

2^2401531 is an apocalyptic number.

2401531 is a deficient number, since it is larger than the sum of its proper divisors (232373).

2401531 is a wasteful number, since it uses less digits than its factorization.

2401531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2401531 is about 1549.6873878302. The cubic root of 2401531 is about 133.9150534606.

Adding to 2401531 its reverse (1351042), we get a palindrome (3752573).

It can be divided in two parts, 240 and 1531, that added together give a palindrome (1771).

The spelling of 2401531 in words is "two million, four hundred one thousand, five hundred thirty-one".