30901601 has 4 divisors (see below), whose sum is σ = 31248900. Its totient is φ = 30554304.

The previous prime is 30901579. The next prime is 30901603. The reversal of 30901601 is 10610903.

30901601 = T₄₉₈ + T₄₉₉ + ... + T₆₇₅.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1957201 + 28944400 = 1399^2 + 5380^2 .

It is a cyclic number.

It is not a de Polignac number, because 30901601 - 2⁶ = 30901537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30901603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173516 + ... + 173693.

It is an arithmetic number, because the mean of its divisors is an integer number (7812225).

Almost surely, 2^30901601 is an apocalyptic number.

It is an amenable number.

30901601 is a deficient number, since it is larger than the sum of its proper divisors (347299).

30901601 is an equidigital number, since it uses as much as digits as its factorization.

30901601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347298.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 30901601 is about 5558.9208485101. The cubic root of 30901601 is about 313.8053379849.

The spelling of 30901601 in words is "thirty million, nine hundred one thousand, six hundred one".