1613994701 has 4 divisors (see below), whose sum is σ = 1760721504. Its totient is φ = 1467267900.

The previous prime is 1613994689. The next prime is 1613994721. The reversal of 1613994701 is 1074993161.

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 1613994701 - 2¹⁸ = 1613732557 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 (1613994721) 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, 73363385 + ... + 73363406.

It is an arithmetic number, because the mean of its divisors is an integer number (440180376).

Almost surely, 2^1613994701 is an apocalyptic number.

1613994701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1613994701 is a deficient number, since it is larger than the sum of its proper divisors (146726803).

1613994701 is a wasteful number, since it uses less digits than its factorization.

1613994701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146726802.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1613994701 is about 40174.5529035483. The cubic root of 1613994701 is about 1173.0072638957.

The spelling of 1613994701 in words is "one billion, six hundred thirteen million, nine hundred ninety-four thousand, seven hundred one".