61211134 has 4 divisors (see below), whose sum is σ = 91816704. Its totient is φ = 30605566.

The previous prime is 61211113. The next prime is 61211167. The reversal of 61211134 is 43111216.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15302782 + ... + 15302785.

It is an arithmetic number, because the mean of its divisors is an integer number (22954176).

Almost surely, 2^61211134 is an apocalyptic number.

61211134 is a deficient number, since it is larger than the sum of its proper divisors (30605570).

61211134 is a wasteful number, since it uses less digits than its factorization.

61211134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30605569.

The product of its digits is 144, while the sum is 19.

The square root of 61211134 is about 7823.7544695626. The cubic root of 61211134 is about 394.1033638467.

The spelling of 61211134 in words is "sixty-one million, two hundred eleven thousand, one hundred thirty-four".