30631069 has 8 divisors (see below), whose sum is σ = 36136448. Its totient is φ = 25408080.

The previous prime is 30631049. The next prime is 30631087. The reversal of 30631069 is 96013603.

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 30631069 - 2⁹ = 30630557 is a prime.

It is a super-2 number, since 2×30631069² = 1876524776165522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30631039) 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, 70362 + ... + 70795.

It is an arithmetic number, because the mean of its divisors is an integer number (4517056).

Almost surely, 2^30631069 is an apocalyptic number.

It is an amenable number.

30631069 is a deficient number, since it is larger than the sum of its proper divisors (5505379).

30631069 is a wasteful number, since it uses less digits than its factorization.

30631069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141195.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 30631069 is about 5534.5342170774. The cubic root of 30631069 is about 312.8869029685.

It can be divided in two parts, 306 and 31069, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 30631069 in words is "thirty million, six hundred thirty-one thousand, sixty-nine".