6161520 has 40 divisors (see below), whose sum is σ = 19101456. Its totient is φ = 1643008.

The previous prime is 6161509. The next prime is 6161527. The reversal of 6161520 is 251616.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12597 + ... + 13076.

Almost surely, 2^6161520 is an apocalyptic number.

6161520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6161520 is an abundant number, since it is smaller than the sum of its proper divisors (12939936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6161520 is a wasteful number, since it uses less digits than its factorization.

6161520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25689 (or 25683 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 6161520 is about 2482.2409230371. The cubic root of 6161520 is about 183.3282055499.

The spelling of 6161520 in words is "six million, one hundred sixty-one thousand, five hundred twenty".