61212003 has 8 divisors (see below), whose sum is σ = 81934608. Its totient is φ = 40648704.

The previous prime is 61211999. The next prime is 61212007. The reversal of 61212003 is 30021216.

It is an interprime number because it is at equal distance from previous prime (61211999) and next prime (61212007).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61212003 - 2² = 61211999 is a prime.

It is a super-2 number, since 2×61212003² = 7493818622544018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61212007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38926 + ... + 40467.

It is an arithmetic number, because the mean of its divisors is an integer number (10241826).

Almost surely, 2^61212003 is an apocalyptic number.

61212003 is a deficient number, since it is larger than the sum of its proper divisors (20722605).

61212003 is a wasteful number, since it uses less digits than its factorization.

61212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79653.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 61212003 is about 7823.8100053618. The cubic root of 61212003 is about 394.1052288353.

Adding to 61212003 its reverse (30021216), we get a palindrome (91233219).

The spelling of 61212003 in words is "sixty-one million, two hundred twelve thousand, three".