4013997501 has 4 divisors (see below), whose sum is σ = 5351996672. Its totient is φ = 2675998332.

The previous prime is 4013997499. The next prime is 4013997511. The reversal of 4013997501 is 1057993104.

It is a happy number.

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 not a de Polignac number, because 4013997501 - 2¹ = 4013997499 is a prime.

It is a super-2 number, since 2×4013997501² = 32224351876068490002, which contains 22 as substring.

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 4013997501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013997511) 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, 668999581 + ... + 668999586.

It is an arithmetic number, because the mean of its divisors is an integer number (1337999168).

Almost surely, 2^4013997501 is an apocalyptic number.

It is an amenable number.

4013997501 is a deficient number, since it is larger than the sum of its proper divisors (1337999171).

4013997501 is a wasteful number, since it uses less digits than its factorization.

4013997501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337999170.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 4013997501 is about 63356.1165239790. The cubic root of 4013997501 is about 1589.2505336172.

The spelling of 4013997501 in words is "four billion, thirteen million, nine hundred ninety-seven thousand, five hundred one".