61091076 has 12 divisors (see below), whose sum is σ = 142545872. Its totient is φ = 20363688.

The previous prime is 61091039. The next prime is 61091087. The reversal of 61091076 is 67019016.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545450 + ... + 2545473.

Almost surely, 2^61091076 is an apocalyptic number.

It is an amenable number.

61091076 is an abundant number, since it is smaller than the sum of its proper divisors (81454796).

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

61091076 is a wasteful number, since it uses less digits than its factorization.

61091076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090930 (or 5090928 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 61091076 is about 7816.0780446462. The cubic root of 61091076 is about 393.8455336850.

It can be divided in two parts, 6 and 1091076, that multiplied together give a palindrome (6546456).

The spelling of 61091076 in words is "sixty-one million, ninety-one thousand, seventy-six".