61456401 has 24 divisors (see below), whose sum is σ = 94034304. Its totient is φ = 40091760.

The previous prime is 61456397. The next prime is 61456427. The reversal of 61456401 is 10465416.

61456401 is a `hidden beast` number, since 6 + 14 + 5 + 640 + 1 = 666.

It is not a de Polignac number, because 61456401 - 2² = 61456397 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (61456441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8731 + ... + 14111.

It is an arithmetic number, because the mean of its divisors is an integer number (3918096).

Almost surely, 2^61456401 is an apocalyptic number.

It is an amenable number.

61456401 is a deficient number, since it is larger than the sum of its proper divisors (32577903).

61456401 is an equidigital number, since it uses as much as digits as its factorization.

61456401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443 (or 5431 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 61456401 is about 7839.4133071296. The cubic root of 61456401 is about 394.6290401790.

The spelling of 61456401 in words is "sixty-one million, four hundred fifty-six thousand, four hundred one".