3974520101 has 4 divisors (see below), whose sum is σ = 3975535104. Its totient is φ = 3973505100.

The previous prime is 3974520097. The next prime is 3974520103. The reversal of 3974520101 is 1010254793.

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 a cyclic number.

It is not a de Polignac number, because 3974520101 - 2² = 3974520097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974520103) 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, 501605 + ... + 509466.

It is an arithmetic number, because the mean of its divisors is an integer number (993883776).

Almost surely, 2^3974520101 is an apocalyptic number.

It is an amenable number.

3974520101 is a deficient number, since it is larger than the sum of its proper divisors (1015003).

3974520101 is a wasteful number, since it uses less digits than its factorization.

3974520101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015002.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 3974520101 is about 63043.7951030869. The cubic root of 3974520101 is about 1584.0233015152.

Adding to 3974520101 its reverse (1010254793), we get a palindrome (4984774894).

The spelling of 3974520101 in words is "three billion, nine hundred seventy-four million, five hundred twenty thousand, one hundred one".