109029477 has 4 divisors (see below), whose sum is σ = 145372640. Its totient is φ = 72686316.

The previous prime is 109029443. The next prime is 109029493. The reversal of 109029477 is 774920901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774920901 = 3 ⋅258306967.

It is not a de Polignac number, because 109029477 - 2⁶ = 109029413 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 (109029497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18171577 + ... + 18171582.

It is an arithmetic number, because the mean of its divisors is an integer number (36343160).

Almost surely, 2^109029477 is an apocalyptic number.

It is an amenable number.

109029477 is a deficient number, since it is larger than the sum of its proper divisors (36343163).

109029477 is an equidigital number, since it uses as much as digits as its factorization.

109029477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36343162.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 109029477 is about 10441.7181057525. The cubic root of 109029477 is about 477.7286745863.

The spelling of 109029477 in words is "one hundred nine million, twenty-nine thousand, four hundred seventy-seven".