61421474 has 4 divisors (see below), whose sum is σ = 92132214. Its totient is φ = 30710736.

The previous prime is 61421453. The next prime is 61421573. The reversal of 61421474 is 47412416.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 9653449 = 7195^2 + 3107^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15355367 + ... + 15355370.

Almost surely, 2^61421474 is an apocalyptic number.

61421474 is a deficient number, since it is larger than the sum of its proper divisors (30710740).

61421474 is a wasteful number, since it uses less digits than its factorization.

61421474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30710739.

The product of its digits is 5376, while the sum is 29.

The square root of 61421474 is about 7837.1853365861. The cubic root of 61421474 is about 394.5542672767.

The spelling of 61421474 in words is "sixty-one million, four hundred twenty-one thousand, four hundred seventy-four".