61211042 has 4 divisors (see below), whose sum is σ = 91816566. Its totient is φ = 30605520.

The previous prime is 61211023. The next prime is 61211063. The reversal of 61211042 is 24011216.

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., 46226401 + 14984641 = 6799^2 + 3871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61211042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15302759 + ... + 15302762.

Almost surely, 2^61211042 is an apocalyptic number.

61211042 is a deficient number, since it is larger than the sum of its proper divisors (30605524).

61211042 is a wasteful number, since it uses less digits than its factorization.

61211042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30605523.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 61211042 is about 7823.7485900302. The cubic root of 61211042 is about 394.1031664015.

Adding to 61211042 its reverse (24011216), we get a palindrome (85222258).

The spelling of 61211042 in words is "sixty-one million, two hundred eleven thousand, forty-two".