61471742 has 4 divisors (see below), whose sum is σ = 92207616. Its totient is φ = 30735870.

The previous prime is 61471741. The next prime is 61471747. The reversal of 61471742 is 24717416.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 61471699 and 61471708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61471741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15367934 + ... + 15367937.

It is an arithmetic number, because the mean of its divisors is an integer number (23051904).

Almost surely, 2^61471742 is an apocalyptic number.

61471742 is a deficient number, since it is larger than the sum of its proper divisors (30735874).

61471742 is a wasteful number, since it uses less digits than its factorization.

61471742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30735873.

The product of its digits is 9408, while the sum is 32.

The square root of 61471742 is about 7840.3916993987. The cubic root of 61471742 is about 394.6618737561.

The spelling of 61471742 in words is "sixty-one million, four hundred seventy-one thousand, seven hundred forty-two".