42901613 has 4 divisors (see below), whose sum is σ = 44285568. Its totient is φ = 41517660.

The previous prime is 42901609. The next prime is 42901627. The reversal of 42901613 is 31610924.

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 42901613 - 2² = 42901609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42901213) 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, 691931 + ... + 691992.

It is an arithmetic number, because the mean of its divisors is an integer number (11071392).

Almost surely, 2^42901613 is an apocalyptic number.

It is an amenable number.

42901613 is a deficient number, since it is larger than the sum of its proper divisors (1383955).

42901613 is a wasteful number, since it uses less digits than its factorization.

42901613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383954.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 42901613 is about 6549.9322897264. The cubic root of 42901613 is about 350.0724013485.

The spelling of 42901613 in words is "forty-two million, nine hundred one thousand, six hundred thirteen".