61211104 has 12 divisors (see below), whose sum is σ = 120509424. Its totient is φ = 30605536.

The previous prime is 61211099. The next prime is 61211113. The reversal of 61211104 is 40111216.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 956392 + ... + 956455.

It is an arithmetic number, because the mean of its divisors is an integer number (10042452).

Almost surely, 2^61211104 is an apocalyptic number.

It is an amenable number.

61211104 is a deficient number, since it is larger than the sum of its proper divisors (59298320).

61211104 is a wasteful number, since it uses less digits than its factorization.

61211104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912857 (or 1912849 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 61211104 is about 7823.7525523242. The cubic root of 61211104 is about 394.1032994624.

It can be divided in two parts, 6121 and 1104, that added together give a square (7225 = 85²).

The spelling of 61211104 in words is "sixty-one million, two hundred eleven thousand, one hundred four".