61352144 has 20 divisors (see below), whose sum is σ = 135851424. Its totient is φ = 26293728.

The previous prime is 61352143. The next prime is 61352171. The reversal of 61352144 is 44125316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61352143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273782 + ... + 274005.

Almost surely, 2^61352144 is an apocalyptic number.

It is an amenable number.

61352144 is an abundant number, since it is smaller than the sum of its proper divisors (74499280).

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

61352144 is a wasteful number, since it uses less digits than its factorization.

61352144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547802 (or 547796 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 61352144 is about 7832.7609436265. The cubic root of 61352144 is about 394.4057592484.

The spelling of 61352144 in words is "sixty-one million, three hundred fifty-two thousand, one hundred forty-four".