61253146 has 4 divisors (see below), whose sum is σ = 91879722. Its totient is φ = 30626572.

The previous prime is 61253099. The next prime is 61253147. The reversal of 61253146 is 64135216.

61253146 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., 41796225 + 19456921 = 6465^2 + 4411^2 .

It is not an unprimeable number, because it can be changed into a prime (61253147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15313285 + ... + 15313288.

Almost surely, 2^61253146 is an apocalyptic number.

61253146 is a deficient number, since it is larger than the sum of its proper divisors (30626576).

61253146 is a wasteful number, since it uses less digits than its factorization.

61253146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30626575.

The product of its digits is 4320, while the sum is 28.

The square root of 61253146 is about 7826.4389092358. The cubic root of 61253146 is about 394.1935069461.

The spelling of 61253146 in words is "sixty-one million, two hundred fifty-three thousand, one hundred forty-six".