30772145 has 8 divisors (see below), whose sum is σ = 37048704. Its totient is φ = 24536304.

The previous prime is 30772129. The next prime is 30772151. The reversal of 30772145 is 54127703.

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 30772145 - 2⁴ = 30772129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8489 + ... + 11558.

It is an arithmetic number, because the mean of its divisors is an integer number (4631088).

Almost surely, 2^30772145 is an apocalyptic number.

It is an amenable number.

30772145 is a deficient number, since it is larger than the sum of its proper divisors (6276559).

30772145 is a wasteful number, since it uses less digits than its factorization.

30772145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20359.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 30772145 is about 5547.2646412444. The cubic root of 30772145 is about 313.3665166556.

Adding to 30772145 its reverse (54127703), we get a palindrome (84899848).

The spelling of 30772145 in words is "thirty million, seven hundred seventy-two thousand, one hundred forty-five".