61603351 has 8 divisors (see below), whose sum is σ = 63551984. Its totient is φ = 59685120.

The previous prime is 61603309. The next prime is 61603379. The reversal of 61603351 is 15330616.

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

It is a cyclic number.

It is not a de Polignac number, because 61603351 - 2⁹ = 61602839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61603151) 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, 3450 + ... + 11623.

It is an arithmetic number, because the mean of its divisors is an integer number (7943998).

Almost surely, 2^61603351 is an apocalyptic number.

61603351 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

61603351 is a deficient number, since it is larger than the sum of its proper divisors (1948633).

61603351 is a wasteful number, since it uses less digits than its factorization.

61603351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15201.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 61603351 is about 7848.7802237036. The cubic root of 61603351 is about 394.9433257362.

Adding to 61603351 its reverse (15330616), we get a palindrome (76933967).

The spelling of 61603351 in words is "sixty-one million, six hundred three thousand, three hundred fifty-one".