609613951 has 4 divisors (see below), whose sum is σ = 611312400. Its totient is φ = 607915504.

The previous prime is 609613913. The next prime is 609613957. The reversal of 609613951 is 159316906.

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 609613951 - 2¹⁵ = 609581183 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 (609613957) 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, 848686 + ... + 849403.

It is an arithmetic number, because the mean of its divisors is an integer number (152828100).

Almost surely, 2^609613951 is an apocalyptic number.

609613951 is a deficient number, since it is larger than the sum of its proper divisors (1698449).

609613951 is a wasteful number, since it uses less digits than its factorization.

609613951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698448.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 609613951 is about 24690.3614999862. The cubic root of 609613951 is about 847.9136610915.

The spelling of 609613951 in words is "six hundred nine million, six hundred thirteen thousand, nine hundred fifty-one".