61534146 has 8 divisors (see below), whose sum is σ = 123068304. Its totient is φ = 20511380.

The previous prime is 61534133. The next prime is 61534147. The reversal of 61534146 is 64143516.

It is a sphenic number, since it is the product of 3 distinct primes.

61534146 is an admirable number.

It is a super-2 number, since 2×61534146² = 7572902247898632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61534147) 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, 5127840 + ... + 5127851.

It is an arithmetic number, because the mean of its divisors is an integer number (15383538).

Almost surely, 2^61534146 is an apocalyptic number.

61534146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61534146 is a wasteful number, since it uses less digits than its factorization.

61534146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10255696.

The product of its digits is 8640, while the sum is 30.

The square root of 61534146 is about 7844.3703380195. The cubic root of 61534146 is about 394.7953776473.

The spelling of 61534146 in words is "sixty-one million, five hundred thirty-four thousand, one hundred forty-six".