616540354 has 4 divisors (see below), whose sum is σ = 924810534. Its totient is φ = 308270176.

The previous prime is 616540349. The next prime is 616540363. The reversal of 616540354 is 453045616.

616540354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 613899729 + 2640625 = 24777^2 + 1625^2 .

It is a super-2 number, since 2×616540354² = 760244016220890632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154135087 + ... + 154135090.

Almost surely, 2^616540354 is an apocalyptic number.

616540354 is a deficient number, since it is larger than the sum of its proper divisors (308270180).

616540354 is a wasteful number, since it uses less digits than its factorization.

616540354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308270179.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 616540354 is about 24830.2306473379. The cubic root of 616540354 is about 851.1128924435.

The spelling of 616540354 in words is "six hundred sixteen million, five hundred forty thousand, three hundred fifty-four".