61497128 has 32 divisors (see below), whose sum is σ = 143760960. Its totient is φ = 23959680.

The previous prime is 61497097. The next prime is 61497133. The reversal of 61497128 is 82179416.

It is a junction number, because it is equal to n+sod(n) for n = 61497091 and 61497100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49301 + ... + 50532.

It is an arithmetic number, because the mean of its divisors is an integer number (4492530).

Almost surely, 2^61497128 is an apocalyptic number.

It is an amenable number.

61497128 is an abundant number, since it is smaller than the sum of its proper divisors (82263832).

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

61497128 is a wasteful number, since it uses less digits than its factorization.

61497128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99857 (or 99853 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 61497128 is about 7842.0104565092. The cubic root of 61497128 is about 394.7161941487.

The spelling of 61497128 in words is "sixty-one million, four hundred ninety-seven thousand, one hundred twenty-eight".