4001542451 has 4 divisors (see below), whose sum is σ = 4038940152. Its totient is φ = 3964144752.

The previous prime is 4001542423. The next prime is 4001542483. The reversal of 4001542451 is 1542451004.

4001542451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4001542451 - 2⁶ = 4001542387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4001542451.

It is not an unprimeable number, because it can be changed into a prime (4001542421) 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, 18698690 + ... + 18698903.

It is an arithmetic number, because the mean of its divisors is an integer number (1009735038).

Almost surely, 2^4001542451 is an apocalyptic number.

4001542451 is a deficient number, since it is larger than the sum of its proper divisors (37397701).

4001542451 is a wasteful number, since it uses less digits than its factorization.

4001542451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37397700.

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

The square root of 4001542451 is about 63257.7461738877. The cubic root of 4001542451 is about 1587.6050664419.

Adding to 4001542451 its reverse (1542451004), we get a palindrome (5543993455).

The spelling of 4001542451 in words is "four billion, one million, five hundred forty-two thousand, four hundred fifty-one".