156103945 has 8 divisors (see below), whose sum is σ = 198343944. Its totient is φ = 117537024.

The previous prime is 156103939. The next prime is 156103957. The reversal of 156103945 is 549301651.

156103945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20358144 + 135745801 = 4512^2 + 11651^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156103945 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156103945.

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, 918174 + ... + 918343.

It is an arithmetic number, because the mean of its divisors is an integer number (24792993).

Almost surely, 2^156103945 is an apocalyptic number.

It is an amenable number.

156103945 is a deficient number, since it is larger than the sum of its proper divisors (42239999).

156103945 is a wasteful number, since it uses less digits than its factorization.

156103945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836539.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 156103945 is about 12494.1564341095. The cubic root of 156103945 is about 538.4407983456.

The spelling of 156103945 in words is "one hundred fifty-six million, one hundred three thousand, nine hundred forty-five".