61530354 has 20 divisors (see below), whose sum is σ = 137873934. Its totient is φ = 20510064.

The previous prime is 61530349. The next prime is 61530367. The reversal of 61530354 is 45303516.

It can be written as a sum of positive squares in only one way, i.e., 32661225 + 28869129 = 5715^2 + 5373^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 189747 + ... + 190070.

Almost surely, 2^61530354 is an apocalyptic number.

61530354 is an abundant number, since it is smaller than the sum of its proper divisors (76343580).

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

61530354 is a wasteful number, since it uses less digits than its factorization.

61530354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379831 (or 379822 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 61530354 is about 7844.1286322956. The cubic root of 61530354 is about 394.7872678149.

The spelling of 61530354 in words is "sixty-one million, five hundred thirty thousand, three hundred fifty-four".