61463155 has 8 divisors (see below), whose sum is σ = 79429392. Its totient is φ = 45388128.

The previous prime is 61463147. The next prime is 61463197. The reversal of 61463155 is 55136416.

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

It is a cyclic number.

It is not a de Polignac number, because 61463155 - 2³ = 61463147 is a prime.

It is a Duffinian number.

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, 472729 + ... + 472858.

It is an arithmetic number, because the mean of its divisors is an integer number (9928674).

Almost surely, 2^61463155 is an apocalyptic number.

61463155 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61463155 is a deficient number, since it is larger than the sum of its proper divisors (17966237).

61463155 is a wasteful number, since it uses less digits than its factorization.

61463155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945605.

The product of its digits is 10800, while the sum is 31.

The square root of 61463155 is about 7839.8440673268. The cubic root of 61463155 is about 394.6434961015.

The spelling of 61463155 in words is "sixty-one million, four hundred sixty-three thousand, one hundred fifty-five".